The most important lesson I learned in life about depression is this: depression for me was the inability to make the decisions to do things that would result in me not being depressed. Anti social/anxiety? Take xanax, join a theater group for 6 months: put myself in situations I was most uncomfortable in to overcome my anxiety. Inability to talk to people? Started saying hello to everyone and stopped caring what they think. I forced myself out of my comfort zone so I could get better at the things I wasn’t good at. Overcoming my feelings, understanding that they are a result of my thought process and don’t control me: took years to master.
Someone recommended it to me, and now I recommend it to you: The Power of Now. Read it cover to cover. It helped me understand.