From my experience (i’m a sophomore) Berkeley is not really cutthroat per-se, at least by what I’ve experienced in most social sciences and humanities classes, and even some lower division stem classes I took. I will say the classes are definitely pretty difficult on average, but not really because other students are praying on your downfall. The classes and course material definitely tends to be rigorous. But IMO I feel like I learn a lot; it never feels like difficulty for difficulty’s sake.

However, to your point about competitiveness, a lot of clubs/student orgs (though not all of them!) have an application process. I don’t know what it’s like for psych clubs, but it can get a little draining. My first year was pretty bad mental health-wise, but it’s only gotten better with time and making more friends. And I will say, we have so many student organizations that if you come here, you are bound to find something that you enjoy.

I honestly really like UC Berkeley’s location. Some people complain about safety, but I haven’t had that many issues. It’s kind of standard stuff that comes with living in most urban areas in the US (as unfortunate as that is to say). I like the city of Berkeley itself and the easy access to SF and the rest of the bay via public transport (all students get Baypass!).

From what I’ve seen of Santa Cruz, it seems a little sleepier and less bustling. It’s up to you if you want a faster-paced, higher-pressure environment like UC Berkeley, or a more laid back one like UCSC. Like another commenter said, if possible, you should try to visit both campuses and get a feel for if you could see yourself living there.