Congratulations on making the decision to quit. Doesn't matter how you came to that decision, you made it and now you are here. Step 1 - done. Good.
Now, read up on the site and what to do. First order of business is to get your name on the roll call May 2015 will be your group, because should you succeed (and you will succeed) you will reach 100 days of quit in the month of May. So go to the May 2015 group and get your name on the roll call. This is your promise, that you will not use nicotine for that day. You will post your name on that thread every day and along with your May quit brothers, we will all quit with you one day at a time.
One other piece of advice, start thinking about your "habit"...I just want you to know that nicotine is much bigger than that and the foe you are up against is called addiction. The act of putting dip in your mouth or a cigarette in your mouth and smoking or spitting is the habit, but that's not why you can't stop. It's the nicotine. It's a drug and it's as addicting as heroin. To succeed, this will take everything you got, so get that name on roll, read up, ask questions, and get involved in your quit. We're here to do the same.