Psychedelics have helped me face a lot of my fears, and showed me how many problems in the mind are actually rooted in fear. I could write a big wall of text trying to describe how psychs have helped me get familiar with my mind, but fear is one of the most important lessons in my opinion. "Face and erase" is what I say. You aren't free until you can face that part of your mind, and when you do, fear loses its power. It will still be there to some extent, but now you have control and you realize that fear isn't real.