You have to know yourself. Sometimes just hanging on and reading these forums till you're so exhausted you just go to bed can help. Running can help, anything to power through it. When the urge passes, think about what triggered it and how you handled it and make a plan for next time.
Hey, I know it's rough, but get back on that horse and you can come back. None of us are here because we won, we're here because we're still in the fight.