I did the unhealthy stuff, too: drinking and cutting. OK. Yes, I still drink.
I do brief yoga stretches, deep breathing. Sometimes I have to stand quietly in a bathroom stall or some quiet corner with my back against the wall and just breathe slowly (ujayi type of breathing). I am artistic, so I use my music, writing, and poetry to help me out. During one of my acting stints, I discovered dance--more like movement. Sometimes I wish I had a dance studio room to myself so I can roll around and jump and make some funky choreography.
Peace and healing,
pianogirl