I apologize for the length of this. There are about three different problems tangled up in here. Read the first and last paragraph for a summary.
I've recently been diagnosed with Bipolar Disorder. I've always had trouble perceiving "reality", so to speak, and gauging my reactions to things. I tend to either blow events out of proportion, or not respond to situations that really require responding to.
Right now, I'm 27 and have just gone back to college after a long furlough. I have two years left until I finish my undergraduate degree, and am in a school where I can use some of my higher credits towards both my undergraduate and my graduate degree, so I should have a graduate degree- if all goes well- by the time I'm 30.
The problem is, I need a job to support myself. My Mom has been very generous with supporting me in school for the past year (I've been taking 18 credits every semester, and she sends me $800 for every month that I am in school), but she is also bipolar, and much more severely so than me. I am always afraid of losing her financial support, as she threatens to cut off support whenever we have a disagreement about anything. She was supporting my 19-year-old brother through school, but cut off his support in November, because he voted for a different candidate than her (so did I, but I haven't told her that). (Just to give perspective, she recently married a very well-off man, and it is my stepfather who is essentially supporting my education, but she writes the checks.)
Okay- So, bottom line. I really, really want to support myself and stop getting support from my Mom. My personality kills me everytime I go in for a job interview, though. I try to be "natural" and "myself", but i'm starting to think that that may be just about the worst thing for a "functional" bipolar person to do. I'm willing to do any kind of work (except the world's oldest profession). I am very responsible and hardworking when I get into a work environment, but I've also been called "The Absent Minded Professor" by coworkers more times than I can count. I speak four languages (English, French, Spanish, and Mandarin) fluently, but on a bad day my mind confuses them, and I start speaking (essentially) in Ezra Pound cantos. I am also, most of the time, a very good writer (this question is not an example:), but when I get depressed I can barely put two words together. It's almost like a gap opens between the synapses of my brain. When I apply for jobs, about fifty percent of the time, I actually get called in for an interview on the basis of my resume. In the actual interview, though, I come off as either "unbalanced" or "unstable" (actual terms used). The weird thing is, I feel normal when I'm giving the interview, and most of the time think they went well. Is there any way to correct my perception or my reactions to these situations? I am really, really, really past an acceptable stage of relying on my parents, and I will take any advice.

