Schedule Advice?

Hello, I’ve been a lurker on this site for a while now without much reason to post, but I am curious as to what advice I can get for my junior year schedule, as I’m having a difficult time deciding what I want to do.
First, a bit of background: I’m a Sophomore at a relatively competitive California (LA area) public high school. My dream school is Berkeley (dream school for a reason lol) ,Freshman year I took a basic advanced freshman schedule (H English, H Bio, H int 2, etc) and received all A’s. Sophomore year has definitely been a bit more of a struggle, I took all honors again and made the decision to take AP Chemistry without any previous chemistry (dumb decision looking back on it) and got my first B, not a huge deal, just something to consider.
I’m not really 100% sure what I want to major in for college but I do know I want it to be STEM-related. Cognitive Science has been on my radar lately, so I am inclined to take AP Psychology. The root of the struggle is the decision between taking AP Seminar or AP Psychology. In my school, AP Seminar is one of the best-taught classes in the school and is generally known to have the best teachers, that said, the class is very time-consuming. In theory, I could take both Seminar and Psychology but that would amount to six AP classes and I don’t know if I could handle that, especially considering AP Chemistry. My school has the 0-period schedule, so taking seven classes means an hour and a half less of sleep, which has been another struggle in my head. I have a 0 period this year, and it hasn’t been too taxing so far; however, considering my schedule isn’t as difficult as it would be next year, I might really appreciate the extra sleep next year. If it helps, I’ll include my four-year plan below

9th: H Bio, H English, H Integrated 2, Spanish 1, Health/CCP, PE
10th: AP Chemistry, H English, H Integrated 3, H World History, Spanish 2, Fitness, Photography
10th Summer: H Pre-Calc
11th: APUSH, AP Lang, AP Phys 1 or C, AP Calc, H Span 3, AP Psych or AP Seminar (both?)
12th: AP Gov/Econ, AP Bio or APES, AP Stats, AP Span, AP Lit, AP Research? or Comp Sci if no research.

Something else to mention: My school doesn’t have honors for any classes above Sophomore year (with the exception of Spanish) so it would either be Regular or AP. I can’t drop to regular for any of my core subjects as I’ve already started through the honors track.
A part of me feels as if I should just bite the bullet and take both, but I am a very social person and spend a lot of time out of the house, and I don’t think I would have the same amount of time if I took all of these classes.

Advice?

If you feel you can challenge yourself, go for it. But, please do not neglect your social life over academics. Yes, taking APs is important, but doing something with your life and getting your experiences is probably worth more.

What is your prospective major?

AP Chemistry is a level 2 class that has Honors Chem as a pre-req, so you really did yourself no favor by taking it without the pre-req. Don’t do it again with Physics: Honors Physics, then Physics C (which, too, is the second level in a subject).
Taking Precalc in the summer just to finish with AP Stats is pointless. Take Precalc as a junior, calculus as a senior. End on a high note.
Top colleges expect 6-8 AP classes TOPS, TOTAL. Meaning about 3-4 each of jr and sr year. Taking 5 or 6 does NOT help you get into college and it would likely impact your ability to do well in everything. Having only 3-4 APs should leave you enough time to spend on ECs, which is a major element of your application.
11th: APUSH, AP Seminar OR AP Psych, AP Lang, AP Phys 1, Precalculus H, H Span 3, Psychology/elective (regular) or nothing else
12th: AP Gov/Econ, AP Physics C, AP Calculus, AP Span, English, AP Research or free period (for college applications)