17 yo relationship ?

fuck bro, you're 17. Do what you want, whatever feels right for you then do it.
My first relationship was 16 I'm pretty sure, and it taught me a lot about relationships and girls.
I would say go for it, it's never a bad thing to have a girl plus it just teaches you what your preferences are.
Plus I doubt you are really that busy, you're just in school that's it. Obviously focus on school, but you probably sit on the computer or chill with friends most of the time anyways.