Best piece of free advice you will ever get:

Be sure you physically qualify. Take the physical for UPT

Get into college, you will have to have a 4 year degree to be an officer pilot in any service except being a W/O in the Army. Trust me, you want the degree

Start no later than your second year of college searching out Guard and Reserve units. If you really, really want to be a fighter pilot, go to fighter units, otherwise every unit that you can live with, location-wise.

Do NOT give up after your first two visits or your next after that, make sure the Ops Officer and Squadron Commander know you are serious at being a long-term unit asset.

As soon as you have the degree, take the first unit that offers you. UPT assignment.

I did this back in the 70s and I hired and sent thru UPT about 15 now experienced AF pilots. They are full-timers, airline pilots and the like.

GF