Sam, I know you can do this because you are doing it. Try to play the tape through. Keep your eye on the prize that is sobriety. I'm no expert with my track record, but I do know that people feel better shortly after these types of struggles.
Maybe go to Newcomers to remind yourself of why you quit. Maybe try to help some of those people to occupy yourself. Just a couple of thoughts.
Soon you'll have 100 days. Stay the course, we believe in you.