I went from being a happy kid that smiled all the time, enjoyed drawing and had several friends to a pathetic adult with no talents, passion, creativity, friends or a job. Just a worthless and unlovable failure. And recently it's gotten so bad that I've started cutting myself and contemplating suicide. I just don't believe I have what it takes to get my life together, sadly.
Do you still like drawing? That would seem to repudiate having no passion or creativity.
Even if you stopped, if it's enough a part of your identity that it's one of the three things you mention when you talk about the period in your life when you were happier, maybe it (or something like it!) would be a way of finding a positive identity again.
Just an idea. Really, I should follow the same advice . . .