Traditional psychotherapy has a really low success rate, but it makes big money for the therapists.
Victor Frankl was an early psychotherapist (and Jewish concentration camp prisoner) who pioneered 'logotherapy'. He noted that people who found a goal to focus on, a purpose, and simply had someone to talk to showed dramatic improvement and often required no further treatment. But there's no money in a cure.
He authored a book called "Man's Search for Meaning" which I highly recommend. It's short too. Maybe it could help you?
I know from my own experience that focusing my life on my artwork and dreams (no matter how far out) helped my depression a lot. It didn't cure it. But it took away the utter hopelessness. It gave me something to strive for while remaining uncaring if I die or not.