Need help deciding between UCI, SDSU (Honors College), and Cal Poly Slo

I would greatly appreciate if anyone could give me a better idea of what I should expect to see if I attended anyone of
these schools. I have been admitted to all of them for a Bio major, and am starting to lose sleep and sanity because I cannot make a decision. I would like to know, from a students perspective, things like how are the academics, dorm life, clubs, non official sports teams, and general campus vibe.

Background info:
female, age 17, senior
I come from a small school (>800) in Nor Cal
I really enjoy living an active lifestyle (ie. playing sports, hiking, and trying new things in general)
I am slightly on the shyer side, so I would like a school that has programs that are easy to join and welcoming

thank you in advance for any imput

I would choose from SLO and UCI. Personally I would do UCI for that in my opinion, you would be getting a great education from it