I need y'all's help can y'all help me?

I'm thinking about going into CA in school. Now I never been in CA before so i'm kinda weak, I'm not even good at sports at all but I don't suck nether. I want to know should I join?? My friends say yes and some say no. And by the way I'm ganna be a JR and well what do y'all think should I join or not ooo and also if y'all think I should join what sport should I join ( but not soccer)