rose, i'm just seeing this now, and i really regret that i haven't had a chance to read and reply sooner. i'm really hurting for you.
first off, bipolar is not something that leaves you "beyond repair." it is a disorder, and it can be coped with. if the psychologist or psychiatrist left you with the impression that nothing can be done, or that you're beyond repair, they really were not doing their job, or even behaving ethically.
you deserve to be treated well by your mental health professionals. one thing to be aware of is that bipolar is a "popular" disorder these days, and mental health professionals will sometimes jump to that diagnosis while missing whatever is really going on. i'd be a little suspicious of someone who was trying to diagnose me in our first meeting. but that's me, and that's in part because when i was trying to get diagnosed, they insisted my problem was that i was bipolar, even though i knew perfectly well that i didn't have the right symptoms for that.
but you also know yourself way better than i do, so you would know whether the diagnosis seems correct for your symptoms.
i don't know whether your health insurance covers mental health, or what kind of coverage you have, but if you have some level of coverage, try finding another therapist/psychiatrist. it's a major pain in the butt, but it does help once you find someone who can really be of use. then again, when i'm in the middle of a depression, finding a therapist is really low on the list of things i have the energy or motivation to do.
take care of yourself, and i hope that, if nothing else, the cymbalta works.
but, come to think of it, if you're bipolar, there are probably a whole lot of medications that they haven't even tried yet, because the meds for bipolar are different than for unipolar depression. just for the record.