How far can I make it?

I’m 17 years old and just graduated high school I’ve been playing tennis since I was 11, but I quit when I turned 13, and started up again when I was 15.

I’ve never had formal serious training. When I was 11, I took classes at a camp in a local community college, and In high school, we never had “real” coaching. We had a coach, yes, but he was more of a rally partner and advisor than a technical coach.

I have a 3.5 UTR, and I was singles 3 in my varsity high school team, and made it to the qualifying rounds of the CIF tournament (California High School Tournmanet)

How far do you think I can make it in the tennis world? I’m a firm believer that anything is possible with enough hard work and dedication, but I know when to be realistic too.

I know I’m way too old to even consider going pro, and I’m so mediocre to even think I can do it. But it won’t hurt me to try, right?

If I seriously started training, got formal coaching and everything, can I still be able reach my dreams?