Most selective colleges will expect you to reach level 3 and the most selective colleges expect 4.
For UCs 3 will generally be okay.
Foreign language is a core class. It matters more to colleges than yearbook.
What's your full schedule this year?
Kudos on scheduling that appointment with a psychologist.
If you feel really bad, you could take a leave of absence for one semester, go home, work full time, see if you do feel better.
An issue is that aspiring to home cooked meals and your childhood bedroom seems a bit regressive - if you feel fragile and depressed it can be a cocoon to help you get better and launch, but it wouldn't be a long term solution, rather, a temporary respite.
Living in a fraternity if you don't want partyers makes things worse - ask if you could switch to the wellness dorm or the substance free dorm.(it doesn't mean you can't party, just that nonone parties *in the dorm*).
For top colleges, it helps. For some, it's mandatory. Georgetown wants 3 and all other colleges that recommend or require the tests want 2. ( Unless you're an Olympics athlete or attend a low performing school, consider "recommend" as "required" or "advantageous if good" Obviously only send 700+ scores.)
My recommendation would be to take English Literature or your foreign language as well as us history in November, then whatever you scored lowest in plus world History on December - or if both November tests were 700+, take the Humanities subject you didn't take in November.