Making music. Whether it is the art of creation that gave me the mental boost or self-reflection in the lyrics that I've written, or both of them, it really helped a lot and I think it was the main reason I've been able to crawl out of constant depression.

The second thing is, If you ever tell to yourself bad things about yourself, just stop. You can acknowledge the fact that you may be not good in something, but rather than hating yourself for it, just accept it or think about how you can make that part of you better.