A LOT of Running

I have been running all through high school and now is the first time I have really felt like.... "man im runnin a ton!!" Every mornin before school at 6 we run 4 miles and everyday after school we do a workout too. And on saturdays we do an hour and thirty long run. Gets me tired. Oh and im also hittin up the gym now every monday, tuesday, thursday, and friday. fun