Thank you for the sacrifice you are making my being in the military. I'm sure you don't hear it nearly often enough.
Your room might be small but you certainly have it well organized and set up for making beautiful quilts. I'd recommend an office type chair that can be raised to the proper lever for your height. Wheels on the bottom also help you turn to get up for all of the pressing. Oh Yes, I'm jealous of your fabric stash too.