How would you improve American teenagers.?

I don't mean 'Get rid of that damn Miley Cyrus and Gangsta rap'. How would you improve education, and health of us teenagers. I have many ideas but I am only going to say a few. Lunches in school are not only fattening, but extremely expensive. They should lower the calories by getting us some healthier food instead of seasoned fried potatos, and lower the prices. Gym should be more strict. There are some lazy bone kids who don't change at all during class and don't even have a doctors note to be excused. I'd make them run a lap or two around the track. They should also make us do more active things in gym. Students need better teachers. The students play a big part in school but teachers play a bigger part. Most teachers don't care about their students and are just plain horrible teachers. They should evaluate how many students failed and barely passed. There should also be people from the Board of Education observing the teachers once a month to see their methods of teaching and how attentive students are.