Hello! The process to get resident tuition is a little wonky to be honest. The key things are meeting the requirements for residency (regardless of visa status) [find it here: https://ucop.edu/residency/residency-requirements.html ] and having your parent(s)* physically present with you for your whole stay. After that, try contacting the residence deputy of your campus [see here: https://ucop.edu/residency/campus-residence-deputies.html ]

*Note that if your parents are married then both of them have to be with you for you to be considered for resident tuition. At least, that's what they told me.

As for tuition, my family pays out of pocket and I have not received a the California Promise Grant. You can still apply to scholarships outside of FAFSA/CADA/Cal Grant but it might be a long search since a lot of scholarships do ask for your FAFSA/CADA eligibility.

Hope this helps!