If I’m reading this right you are a sophomore right now. You missed the deadline to apply for your junior year at UCSB; that was back in November.
Going forward there is a potential problem because you’ll likely start taking upper division classes. You can take all the lower division classes you want and be eligible for transfer, but the UCs have a limit on the total number of units you can have and still be eligible to transfer. The total you have is based on a capped number of lower division units plus any upper division units. See http://admission.universityofcalifornia.edu/counselors/transfer/advising/transferring-credits/index.html