Want to Try Out for Tennis

Hey I’m a sophomore in highschool and i’m thinking about playing girls varsity tennis .. but i’m really just a beginner/intermediate.. i’m gonna start practicing and taking lessons but idk if i’ll be good enough for try outs by Spring .. any tips ? anything is great ! i know the basics and the grips i just haven’t played in so long so i don’t know how i’ll do .. my cardio is good because i’m also in marching band. I just wanna know how i can improve on any and everything because im really thinking about doing this long term. Once I start practicing i’ll update.. i just hope to boost my confidence for tryouts and make great improvement