Hello, I am too on a similar quest, I am in 10th grade and have done extensive reseacher. You must excel in Science and Math classes, be Physically Fit, being able to do 1.5 miles in 12 minutes, 50 pushups and situps in 2 minutes. They also look for a whole person to be a fighter pilot. This means, intelligent, plays sports, has an after school activity that benefits the community like Boy Scouts or Girl Scouts. Your grades should be in the 90's, you just don't automatically become a fighter pilot, your put in a class of 8-10 and then they take the top 2-3 to become fighter/bomber pilots, the rest become refuelers or transport pilots. You must have a set mind and be committed.

As for your  condition I'm not sure, you might have less a chance unforunatley, even if ou use medication because it is an unknown to me what multiple G stresses could have on ADHD

PS: What Aviation Academy?