Congrats on your acceptance!
I am confused as to why you would be aiming for California when you would likely get very good scholarships and a very good education in PA.
You said you have close relatives here. You also said your living situation is very temporary. Are you wanting to move to CA because your relatives are more stable and you could live with them? Another option might be to come here, live with the relatives, take time off of school, work to establish residency, then start with our wonderful community colleges, then transfer to a 4 year school. You would need to establish residency prior to starting at the community college. But you would then be eligible for scholarships and a much lower tuition. And it would get you out of your current poor living situation.