Welcome aboard. Have you posted roll yet? Do it. Join the June group and make the deal with yourself and your homeboys to not use nicotine for today. Tomorrow will be there, so fuck it, just worry about today.
Day 3 is a bitch. Hold on tight, drink the shit out of water, and ride it out. You WILL feel better tomorrow if you keep that promise to not use today. Hang around the site, read up at the Welcome Center, and jump into chat. There are LOADS of dudes here looking to help, and give great advice. We were all dumbfucks that dipped. Your story will not be unique. I'll quit with you today, bro.