I look at your situation and on the forefront the scores and the schools applied to were fairly similar to my kid’s. And he got rejected / waitlisted to a lot of those same places. He actually was willing to go to community college and retry again if he hadn’t gotten into his top choices.
Some questions for you. 1) are you in the top 10% of your class as far as class ranking? Not sure how true this is, but the top UCs take this heavily into consideration supposedly. 2) did you have any ECs with leadership? ie officer in a couple of clubs 3). Did you have any hooks that you would have expressed in your ECs or essays?