Why stress over admissions to prestigious schools like Cal, when you can just do 2 years at a trivially cheap institution (less than a $1k per quarter; you'll pay more in textbook fees), where you'll be taking lower division and general ed courses that are the same no matter where you take them, and save 2 years of tuition? Not to mention, if you're from out of state you can establish residency while at the cheaper CC.
Community colleges are way underrated.