That’s with any major / career but the good news is - no matter what you get your degree in, there will be areas for you to pivot to.
Up front, you noted stress - and that maybe that wasn’t your desire - and that’s fair. Many jobs are stressful but there are different levels of stress in life.
No matter what you study in school, you’ll have flexibility to pursue different avenues in life.
The one advantage of nursing will be - if you do decide to stay in the field, finding a job will be easier and a path more defined than with the psych degree.
btw - I’m in the car business - I work with car dealers and one of the managers I work with was a nurse for years - but left due to stress and finances (he did well but makes more now with more mental and actual balance in his life).
So nothing is “forever” if you decide it’s not for you.
One thing I might take out of the equation - SDSU vs. UCLA.
Obviously the nursing direct admit is a coup - but let’s say you don’t like it and decide to transfer out.
I don’t forsee a psych degree at UCLA as necessarily world beating vs. a psych degree at SDSU. In other words, worst case, you’ll be fine at either school.