wait????

i scheduled another apppointment with my weekly therapist tomorrow morning....should i wait to cut or cut now??? i reeeeeeeally wanna cut now and just get the punishing done......but i dunno....i just feel like maybe i should wait....i'm trying to stop it, but i'm having a hard time trying to believe it's not my fault and stuff.....but i know it's my fault....i need to be punished....