"Admit when you're wrong. Shut up when you're right." -John Gottman (This man knows a LOT about what helps - and what hurts - relationships. He's done tons of research on it, read his stuff it's amazing.
I couldn't agree more with this poster. Particularly if you are recovering from mental difficulties. You must be with positive people and rise to their level. Negative people have a habit of dragging you down to their own level.
Master AN art! Master a skill! What the fuck are you? Read a fucking book. Become an intellect, the art of observing, it's not an art, it's manipulatively, what is your motive? Master something. Manipulation is not an art.