I applied for SSDI when I was 19. I had tried a lot of different jobs and most only lasted a few months before I ended up in the hospital because I was so overwhelmed. I just couldn't work no matter how hard I tried, even when I liked the job. However, for me it is not just bipolar...I also have generalized anxiety disorder, PTSD, chronic insomnia, and at the time I applied I had an eating disorder. I was denied when I applied, my first appeal was denied, but my second appeal was approved. I had to get a lawyer and go to a hearing for that, and that's when I found out that I had been denied because of my IQ. The DVR was arguing that I was "too smart" to not be able to work. The judge was great, he yelled at the DVR rep and apologized to me and gave me double back-pay. I am telling you all of this because most people do get denied at least once, so you need to keep appealing. Maybe this website will help you out:
http://www.marthachurchill.com/ssmibasic.htm
I wish you the best; it's a frustrating process but if you need to be on it, then you need to go for it.
P.S. I am right-handed
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From the movie The Hours: "If I were thinking clearly, Leonard, I would tell you that I wrestle alone in the dark, in the deep dark, and that only I can know. Only I can understand my condition. You live with the threat, you tell me you live with the threat of my extinction. Leonard, I live with it too."