Yes, bulimia can mess you up; the cure is very good nutrition and exercise so your muscles are strengthen, and your pain goes away. That is something you can do for yourself.
YOur life is not moving forward according to your description. You are stuck..and not getting enough personal satisfaction and gratification. That's where you have to focus your efforts. See your psychiatrist as a guide and sounding board, rather than a diagnosis machine or pill dispenser. Work on your life, not your diagnosis. That's the way out of this.
You can try the MasteringStress program above to get you started in an honest conversation with yourself, and developing a plan to do this. YOu can do it from home inexpensively.
Hope this helps, if not, you might find another Dr. or check out one of the universities studies they have on-going for depression and other illnesses. It's free...just go online to the teaching univ. closest to you or maybe WebMD has listings.
Good luck...you WILL get better.
Other than that, I recommend seeing a dietician. I'm doing that soon as well as getting a trainer... I may have stopped purging but my weight obsession will nevver go away as long as the rest of my family drops like flies from obesity.