I still think that the main issue here is whether or not this student wants to be a nurse. The second issue is whether or not UCLA is affordable- that is unclear to me.
OP take a look at the nursing classes and see if they are of interest to you. Try to speak with current nursing students and ask about their day, clinicals etc. Try and get a sense as to whether you would enjoy the work, the profession, the courses etc.
There is no wrong answer here. It’s ok to try nursing and switch majors if you want. But…you would have to be ok attending SDSU (a perfectly good school) unless you transfer. It is also ok to realize now that nursing is not for you, and you also prefer UCLA.
Either degree will lead to a first job. Both will also allow you to go back to school down the road if you should decide to be an occupational therapist, a NP, a teacher, lawyer, psychologist etc. Nothing will be off limits…regardless of the major you choose. The difference is that as a nursing major you will immediately step foot into a well paying career. A psych major could have more twists and turns….initially.
I will repeat myself (again). Nursing is a tough career if you like it. It is a really, really tough career if you don’t…imo.