Brian,
First thing....realize that even though it may seem like it at times, quitting dip and the attendant nicotine withdrawals NEVER killed anyone. It'll suck. Learn to embrace it. Remember it, and never forget it....sear it into your memory such that you'll never want to go through the suck again. Second thing, change your quit date. if you spit it out today, then today is (by KTC's method of counting), your "day 1". Post your promise in the June 2015 quit group you won't use tobacco today. Wake up tomorrow, piss, and post roll again. The sooner, the better, as it takes the option to use off the table.
Read as much as you can on this site, drink plenty of water, and lean on your quit brothers. They're going through the same hell you are, you're not alone.
You CAN do this. I did, and I banged the can for longer than you've been alive.