Suffering from coders block/coder fear.. what do I do?

I have been away at rehab for about a month and got out around the end of October. Before I became a oxy addict I was a prolific programmer and did a lot of fun computer work/hacking.. Since I have been out I am scared to jump back in to the computing field for some weird reason. It is something I was exceptional at and I am scared I will try something and fail. I cant handle any more failure this year.. How do I get over this? I don't know where to start, what to code, what to read... Any suggestions?