What is depression and what kind do you have? There are depressions which envolve brain chemical deficiencies. How that happens, I'm not sure, but there may be a genetic component. More typically, depression is usually seen as supressed self hate, unconscious anger dirrected at the self. The cure, of course, is to get in touch with your feelings. That will likely be very difficult because, in the fools world we live in, upside down to reality, feelings, and feeling feelings is thought to be a sign of weakness. Naturally it is. When you hate yourself, do you imagine any opinions you have about reality are valid or healthy for your self. Of course not. When you hate yourself, you hate anything that's healthy or will lead you to self healing. Remember, too, that nobody else wants you to get well either. That would just leave the rest of us in our sh!t pot up to our noses with you making waves.
However if by some strange accident, you happened to stumble on some good advise, it might begin by pointing out that you have been taught to never express anger. Angey children are bad children. They make demands to be alive. Children must not be allowed to be alive. They remind us that we are dead.
So if you really want to solve the depression problem, make sure you aren't a chemical type and find a therapist who understands the suppressed feelings angle to this and let it all hang out. It will feel like dying, because it will cause you to remember when you did.
Alternatively, you may prefer one of the millions of sleeping pills our society offers to avoid self contact.