Architecture is much more difficult and intensive than Int Des but managing projects and clients remains reasonably similar.  Take all the hands-on experience you can in this int des gig and use that to get an advantage once you see an opening.

DEAR ninaddeole: Thank you for writing. I have recommended the resources you mentioned in my column in the past. Sexaholics Anonymous and S-Anon have been in existence for more than 35 years and have helped many individuals stop unhealthy, destructive cycles of behavior. There are chapters nationwide. Readers, to find a meeting near you, visit sa.org or sanon.org.

I'd start looking for options.  You're learning valuable things with this individual.  But, architects don't always think the most highly of interior designers.  I wouldn't stick around long enough for that label to start applying, if it were me.  

A lot of architectural firms actually have in house interior designers. I would work there long enough to apply yourself and advance your skill set without getting too comfortable. You can probably learn a lot from them in terms of design so use that to your advantage. int design is something that can just become intuitive rather than educated. When you're ready, look for jobs at an architectural office that also has interiors and you push that as part of your skillset with the eventual goal of managing your own projects and using the interiors as a supplement to the design process. If you feel like your lacking in terms of the architectural aspects then you can go somewhere that will give you both. 

Don't get stuck in the service end of architecture and interior design (both can be extremely stressful, time wasting, no appreciation and very little money). Once you feel you've learn all you wanted, go into real estate, save some money and go to the developer end. You can do both interior and architecture for yourself, sell your property and make some money.