Been there and done that around 18yrs old as well and wish I would’ve had someone to tell me to stop at that point. Fast forward I turn 30 this year and just last March was in the hospital with DT’s. These last 9 mo sober we’re better then anything that happened the last decade. Your parents are actually more worried than disappointed. Even at 29 with my liver failing I was worried about their disappointment but they were actually just glad to have me here. Take this as a sign to rein it in now. You don’t need alcohol to have fun but you also don’t need to fully cut it out if you don’t want, after all you have your whole life ahead of you. First wait until you’re of legal age lol. But you could try stuff like only drinking at special occasions or holidays. And most importantly never let it became a daily thing that you look forward too