Younger guy

So I met this guy two weeks ago at a school competition. I thought he was cute when he mentioned his love for green tea. And so we started talking at competition once I asked him out to have lunch with my friend and I. After the competition was over he asked me for my snap. We talked for a little bit but a couple of days passed and he left me on read. Two weeks pass and I sent him a funny video. And that kinda started the whole thing again. I asked him out to the movies, and he said sure. The problem I’m having with this is that I’m a senior and he’s a junior (I’m 18 and he just turned 16) so yeaaaa. Also, I’m not sure if he’s flirting with me. Like he’ll say I’m amazing, or call me smart and then say “get you a smart girl”. And I’m just confused. So any advice or tips