<p>Asthma is a hurdle and a paperwork headache, but it certaintly isn't an impossible obstacle. Many times they will require a methacholine challenge test, other times a pulmonary functions test. Also, the thing about your 13th birthday is asking about when you had your most recent attack, not when you were diagnosed. As you probably guessed, I had to get a waiver for asthma this year. I ran 4 years of track, 2 years of cross country, and 2 years of golf. Your list of activities looks strong, but there's always room for improvement. Keep those grades up (that is priority #1) and take the college entrance tests early and often (I took my first ACT sophomore and ended up taking it 3 more times after that). Those tests are just like any other skill - practice makes perfect. The previous posts also give good advice.
I should also say that you have no idea how much of an advantage you have in starting early like this. West Point admission is a task that requires a high school career full of hard work, not just a Saturday afternoon spent on filling out a college application. You have a great head start; don't waste it. Good luck!</p>