Ask HN: How do you deal with self-doubt and depression

I am going through some serious self-doubt. I feel everyone around me is better than me.

I am feeling crippled inside my heart, I don't know how how to put it into words.

I procrastinate to keep my mind off things, but it is spiralling me more towards more self-hatred and doubt on my skills.

I avoid meeting friends. I try to appear happy when meeting people. But inside I know I am useless piece of crap.

I literally am a bad programmer, bad business person, probably a bad friend and spouse.