I know that I will probably be accepted in the Air Force academy and become an officer so I will be qualfied to be a fighter pilot.
Since the "how the heck do I get 1000 hours" part has been answered, I'll look instead at this part.
How do you know that you will be accepted to the AFA? They have very strict entrance requirements. Remember also that not everyone who joins the Air Force (not even everyone who goes through the AFA) can be a pilot. Nor can all Air Force pilots be astronauts.
How old are you? If you're between 11 and 15 (or possibly older, but if you're much older you won't have much time), I would
strongly recommend you look into joining a local cadet squadron of Civil Air Patrol. It's a very good way to get yourself a "leg up" into the Air Force, and can help you in deciding whether or not you actually want to join, if you're still on the fence. Plus, it can get you flying lessons for much cheaper than you could elsewhere.
Thats not a problem to me though. The only negative part in that is they really don't have an air force.
So you won't have stuff to shoot down? The bad guys have shown that they're plenty capable of shooting
you down without an air force.
That $20 million bird you're flying can be brought down by a sub-$100,000 man-portable heat-seeker.