Drugs and drinking will definitely hinder abilities to lucid dream, but don't fret about it if you have a drink every once and a while socially. Don't drink, you're only 16, I meant for when you turn 21

Like wave said, it's not going to be a shock to your brain when you realize that you're dreaming so it should be easier. A problem that a lot of newbies face is that when they finally have their first LD their brain panics because it's a completely new state of mind and they wake up, that shouldn't happen for you.