What is it that's causing you to feel that way.....something going on in your life differently now than before......having to decide whether to go to rehab or not?.....having to make decisions is always a difficult thing to do in our life....sometimes we feel if we had never been born we wouldn't have to make any decisions........especially when they are very important decisions.....
It's understandable that you are feeling the way you are right now IMO.
I'm sure there are many other things going on that are making you feel that way......it's important to understand those things that are making you feel that way as it help to understand yourself better