Tennis lessons?

I play tennis and lacrosse and you should definitely stick with both. If your 14 now you'll probably be good enough to at least make junior varsity by high school maybe varsity depending on how good your schools team is. I don't know where you would find lacrosse lessons but there are a lot of summer camps you could find on the internet otherwise if you just get a stick and ball and play catch with some friends you will improve really quickly