I know I don't have the same experience as you, SS, but I did withdraw a couple of times when I was in school to save my GPA. I wasn't going to classes and I was failing everything because I could not function. I didn't know how to handle life (still don't). Somehow I got through it and graduated.
SS, I wish the best for you. You have been such a great contributer here and you have amazing strength I wish I had. Please don't beat yourself up with this...I remember regretting that period of time but knew I could do nothing to change what had happened. I had to accept that and it gave me the strength to finish what I'd started.
I'm sorry I'm probably not helping much...I'm rambling and I don't know what to say. I'm not a good example in this recovery thing, that's for sure. Big hugs.