It took me about five years to accept my bipolar diagnosis. I was pretty sure I had it even before I was diagnosed, but didn't do anything about it until my GP forced me into a psych consult after I failed my fourth antidepressant. I'd still like to believe I'm in some sort of long-term existential crisis, but I know better now and I don't question the dx anymore. I don't even mess with my meds or skip appointments with my pdoc. It's not worth getting sick again.