Where do you get that you are average? Is average better than 98% of the country?? Does average take 11 APs.
Unless you are only applying to UCs, you are, in my opinion, foolish not to take a SAT or ACT. It can only help you. If you don’t do well, don’t send it in. Test optional doesn’t mean you have equal odds - it does mean they’ll review you without. Obviously, the UCs won’t use it so if that’s where you’ll end up.
I don’t see you getting into Stanford, USC, or UCLA. The last three are safeties.
If money is an issue, you might also apply to University of Arizona where you’ll get $30K out of $37K tuition in merit.
Good luck to you.