Can I withdraw from CSULB after accepting admission?

Hello, I accepted the CSULB admission offer a while back but I recently changed my mind and I’ve also accepted the CSUF admission offer yesterday. Can I withdraw my admission from CSULB and will it affect my financial aid if I accepted offers from both schools?

You cannot double deposit/enroll so yes you need to withdraw from CSULB immediately and then let CSUF financial aid office know that you will attending there.