wrestlerkid:

I understand your nervousness and yes, the difference between middle school and high school is like night and day. But you're thinking WAY too much.

Do your conditioning and take it to the point of asking your coaches exactly what you should be doing — if you already haven't. But just relax; you sound like you are truly interested in a high school career. Within the first week or so of practice the nerves will be gone and you'll be ready to go.

Have fun and have a great year.