Yeah I started chewing at 16 too, now 20. I would recommend getting packs of sugar free gum and chew that all day. By the sound of it your in a good situation to be quitting unlike myself (can a day). Or else limit yourself to a certain number of dips a day. If your like me you have pretty much a mental schedual of when you put a dip in. Start 1 week with a certain number then the next week subtract 1 and so on week by week till your at 0.

Another good reason to quit if your trying to put on weight. I personally know a lot of people who quit chewing and packed on 3 to 10lbs. in a matter of weeks.

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Deadlift - 405X1
Squat - 325X1
Bench - 225X1

Golf Tee - Anyone who can bench more than they can squat and/or deadlift.