The laws for my state say that PE is required (and health).
How does that work? Do you just have to like walk around your neighborhood or something?
Aren’t those laws talking about what you have to do in public school to get a high school diploma? I’d be surprised if they invaded private school autonomy to require private schooled kids to take P.E.
If you want to walk around your neighborhood for forty minutes a day, feel free to call that "PE" and enter that in your high school cumulative file as a course you regularly studied. You could also jog, bike, or board, blade. Get into some competitions and give yourself a purpose.
I’d rather take karate, dance, riding, sailing, gymnastics, tennis, or fencing lessons. Your mom might be able to arrange such lessons on the cheap at your local community college, or you could take them at a dance, karate, or fencing studio privately. There’s also the local park and recreation classes (where I took tennis and my kids took dance) for cheap. The Y had a lot of classes. There’s AYSO and little league and other community sports. Your scout troop will have hiking or rock climbing, if the other members are interested, or drill team and cheer squad. There are even neighborhood jumprope teams that are totally serious and they compete, but I wouldn’t know where to start with that; I just know there was one that practiced in my alley every afternoon and were awesome. There should be a local chapter of jugglers who might have lessons. The municipal golf course will have pros that give lessons and the municipal pool will probably have swimming lessons as soon as they open for the season. Don’t forget skiiing, boarding, and ice skating. If this doesn’t give you ideas, I don’t know what else to say. The opportunities are probably only limited by the number of sports that exist.
For health, go to the library and ask them to show you the section where the "health textbooks" might be kept, or any similar book. Or shop on eBay for one under the "textbooks" section. I don’t have a whole lot of respect for "Health" as a subject, other than learning what a proper diet is, as if you didn’t know already. They’ll tell you wash your hands, don’t expose others to your cold nor expose yourself to others’ colds, and after sixth grade (or in some states it’s fifth grade) they’ll endlessly rag on you to "use a condom" as if that were the solution to all situations. Anyway, sign yourself off and spend the saved time reading some quality literature. Fielding, Shakespeare, or Chaucer make a good start.