as a former introvert, nerd and the "lone wolf" with no friends but tons of social anxiety and shyness... would still pick highschool. You can always learn at home, but going to school will give you a reason to get up in the morning and not sleep in because, you can't really "be late" in your own home. Basically it gives you the discipline of being able to wake up on time.
also, seeing people on daily basis is very important. I'm not saying you have to interact with them or even make friends - but just being in a classroom around them was enough me. Skipping school only made my social anxiety grow in the past.
than again, despite my "status" in high school I was never actually bullied, so I had no reason to want to not go.