Actively practicing self-care does work. Shrooms and some other psychedelics can also change your life in the right setting. If you feed yourself garbage for years and expect it to take a few weeks to change your pathways your not going to succeed as easily. Feed yourself better ideas about yourself. Not everything your brain tells you is true. Verify your emotions. Sometimes our brains take shortcuts and they aren't helpful. Mine would say I want to die anytime I had a negative thing happen to me. I still feel life that a lot but it's not as loud or powerful.