While I'm not on Cymbalta, I know a few people who are...and it seems to work just fine for them. I, myself, am on 100 mg of Zoloft -- and it IS an enormous help with depression. However, your doctor was right, honey, when she said it was a band-aid of sorts...medication can give you an initial boost out of that dark pit, but you've got to take a stand and help yourself, too. Have you thought about seeing a counselor or therapist? Usually, a combination of medication and therapy is prescribed to help get depression under control...and then to help teach the depressee about positive thought patterns, inner strengths, etc.
Let us know how things go, lovely. I'm rooting for you!