You do have to meet the A-G requirements but, most of the UC’s focus is on your grades earned in grades 10 and 11. So, a few bad marks freshman year isn’t going to rule you out of most of the UCs.
I don’t know your capped UCGPA so, I’ll add, if it’s under 4.0, most of the UCs are going to be a reach. Apply to all that interest you but, you should probably broaden your perspective and also apply to several CSUs .
If you’ll share your UCCPA, other qualifications, budged and interests, we can help you target a few schools that are likely to admit you.
good luck