advice on boyfriends?

I like this guy, he's super cute... But I don't know if I am ready for a relationship 🤔 most relationships in my school end in a matter of months and I don't want to be that kind of person. I want to learn more about him but are friend groups are TOTALLY different. also I want to do fun things with him like go swimming when its night out or go spend the night on a roof top lol. but we are not old enough to drive:/ Does anyone have any tips on how to get closer to him??