From experience, without a California driver's license, social security number or credit history, you don't exist.
Get you SSN as quickly as possible. Once you have that:
- Go to the DVM and do the knowledge test - book for the driving test (month or so in advance)
- Open an account with any of the big banks. You will need checks.
- Negotiate with them on getting a credit card (probably a very small limit, and secured)
- When you buy a car, even if you don't need a loan, finance at least part of it.
Buying a place is very hard right now unless you have cash up front.
If you are going to rent, because you have no credit history, be prepared to pay 2 months in advance, plus double the deposit.
Be strong. Policy has a way of wearing you down. After a few years, you get over it and accept it.