It could be the wrong thing for you or the wrong school or maybe you're not doing enough work, or have some other thing in your life holding you back.

Methinks you're having the wrong expectations of architecture school atm. You went in with the expectation that you'll learn how to craft spaces to dimensions, this you will...just not in the early stages of education.

Focus on your fundamentals, like what your professor has criticised on. Get familiar with various representation techniques, in particular drawing, which you'll need to jot down ideas in future (it'll be a lost art form sooner or later). It's also perfectly fine a pedagogy to pick up CAD tools from 2nd year onwards. You must be studying in Asia I reckon?

Your professors were probably trying to be kind to you throughout the semester. How about you ask them not to care about your feelings and give a brutally honest opinion on a weekly basis?

Hang in there till year 2 and see how it goes.

I would maybe ask myself and him the following questions:

- What is it that interests me in architecture? It is such a broad field. Are you more interested in designing, as in drawing, or maybe your can express yourself better with the help of physical models and digital models? Are you mostly interested in cities and its ecosystem and how it influences and how it is being influenced by society? You mentioned that you want to learn more about spaces and how they work. Go to the library and find the right books. Teachers are not going to teach you everything you need to know and definitely the stuff that interests you the most. 

- Ask the professor what he exactly means with "you are not good enough". Being not good enough at drawing, doesn't mean you can't be a good architect. 

- Ask your other teachers what they think of you and if they have any advise

I was bad at drawing at the beginning and I'm not even close to a good drawer, but learning to draw is about communicating your ideas, not about making pretty sketches. Maybe you will learn to communicate via fast perspective models and collages in photoshop.. 

which country are you in?  I had one professor tell me 'You're a 4th year student.  You shouldn't be wasting time on where to put the toilet' xD

I also had an employer tell me.. I expect more from a 3rd year student.  That doesn't mean my work is crap.  Its just I put emphasis and prioritize other things. :)

Anyways.. From all my reviews and crits, I realize I learn the most from harsh crits.  It makes me reflect and really look at areas I need to work on and I've always come out better from it, picked up new skills, more knowledge from those.

Whatever you do, don't make a crucial life decision based on one professor's comment in your first year of anything.  Those who can, do.  Those who can't, teach.  Those who can't teach, consult.  The A student usually ends up working for a C student.

grades in an architecture studio are pretty subjective.  if you're in an environment where the professors are failing you, you will likely continue to fail.  if you want to continue pursing an education in architecture school, i think you need to switch schools, which will be hard because of the low grades.

Everyone who is incapable of learning has taken to teaching

Are you struggling in design classes and doing fine in the others? There is far more to architecture then rendering

If your professor was "good enough",(s)he wouldn't be teaching.

That said, most of my peers who sucked at school are doing much better than people who were constant a-graders at school (like me). Architecture in real life is diametrically opposed to what they teach in school.

You guys are harsher with the academics than I am!  I don't think they are necessarily incapable of practice.  I just think many of them have never tasted real life in the profession, and so they believe that the skills that get you good grades in school are the skills that get you success in "the real world".  And so, their opinion of your aptitude must be taken with a giant grain of salt.  And first year is waaaaaay too soon to be weeding out students for supposed lack of talent, whatever that is.

Many good reasons to leave architecture, but a professor's opinion is not one of them.

+1

I used a C project for my main portfolio piece that got me a lot of positive attention from employers and a job out of school. Two of my 'A' projects never made it into my portfolio, they were too abstract. I got an F in studio at mid-semester my final year and ended up with an A becuase one of the final jurors said I was brilliant and my professor who gave me a bad time couldn't see it. My best friend got C's and a few D's then transferred schools and started getting A's and became a top student in her class. I got a C in English 101 too, then during the recession I taught English at a private school in the most educated city in the US. Does any of it make sense? Nah. Just laugh.

After your degree no one will ask you about your grades in college anyways. There is a saying, what do you call the student with the worst grades in med school? Doctor. 

Another point, some of the advice above suggests to get your strengths (digital representation) working for you. I don't disagree, but the opposite philosophy of working on your weaknesses is also a way to grow. It is much better to be a student who can learn and improve than one who is apparently inately talented. If you can bring your weaknesses up to the level of your strengths you have a much better set of tools than having one really powerful way of doing.

They are just preparing you for the harshness of real world architecture life style.

Ok, I am a person who can speak very well about a situation like this. I was skipped during design review a few times by a professor and I know how it feels to have someone wanting you out and I can say without a doubt If you want to stay...stay and if you want to leave...leave. No one can tell you what you can and can not do, in a situation such as this it is up to you to overcome your boundaries. I thought I was down and out, but I manage to pull a job with a nice size firm specializing in healthcare design, I still have a home design business I am trying to figure out what to do with and I am waiting to get into a B.arch  online program with a transfer of at least 55 credits. So you could turn out great it is up to you if you care or not.

Get out now while you still can. It's one of the worst professions out there, unless you're a pretentious egomaniac

I was told same thing by 2 different instructors in school, not something you want to hear but I used as fuel to prove to myself and them why they didn't have the last say so about me and my ability.

although on the flip side, I had about 6 telling how well at the craft I was.

two things:

• it's absolutely vital that you understand how architecture education works. it's not going to be a program of training (like what you're used to from high school), where you're taught a concept and then asked to demonstrate mastery of it; architecture students are taught through an iterative process of design and critique. this will likely never change throughout your time in school, so you need to prepare yourself for that reality.
• don't expect the computer to magically turn you into a good designer. you need to be able to get to a successful design (and learn when to listen to your professors and when to ignore them) without depending on software. you may later find that the computer is where your strongest talents lie, but your digital work will be that much better if you can strengthen your drawing skill and design fundamentals first.

When I graduated, the M.arch chairman told me to do something else

everywhere, everything and everyplace....lol

What does he know? hes a professor. learn from the pros and disregard everything else. If professors were good enough at their subject they would be in practice. 

http://commonedge.org/what-architectural-education-does-to-would-be-architects/

My friend was told to quit in their BA and failed but eventually passed with the lowest possible score. 

They've just won a major architectural award.