Iam 20. I started at 14, too bad I know. I tried alot the the past 2 year to stop it. But I couldn't. I can hold it for only 3 days. But I return to it so bad, even worse than before. The main problem it affects my life as a student. I can't study and I waste alot of time. My health is decrement. I became thin than before abd I get tired when I do little work. HELP!!