forget off
as someone who had an uncle addicted to heroin, an two alcoholic friends
unless you exert a serious amount of mental power, an amount that most 17 year old have never used before, into never ever going near a beer or even forgetin, baily's irish cream, i think you're going to need serious help. this isn't something you can just say you're never going to do again, this is addiction and you should get a sponsor, because the worst may not be behind you and i've seen this happen too many times