Im 17 years old and i love a pinch of dip

yum. I love grizzly longcut mint/wintergreen, or even natural.
Ive been dippin on and off since i was 15 years old. Never more than a can a week, and i wont do it every week. If i ever stop getting a buzz, i quit for a couple months until i get one again. I love to dip, because its something fun to do, and it feels good. Im not addicted, and can quit whenever i want to. ive gone severeal months without even craving dip. I just quit when i stop gettin a buzz, or feel like quittin.
do i need to worry about oral cancer? my uncle has been doing it way more than i have for several years, and he does it multiple times a day. i'll only usualy take like a pinch of two a day maybe.
should i worry? i also smoke occassionally (rarely) and drink alcohol, which i guess can increase the length of time it takes.
thoughts?