Hello!! 
I wanted to know if this schedule is doable/not overdoing it. Some background Info:
I currently take AP Environmental & AP Human Geography, Algebra 2 H, Spanish 2 H, & Eng 1 H
and my UW GPA is a 4.0
I’m in some clubs but, I don’t have many EC’s due to corona.
10th Grade Tentative Schedule:
AP World History
AP Biology
AP Psychology
Pre-Calculus H
Spanish 3 H
English 2 H
Painting I - (semester 1)
Drawing I - (semester 2)
I’ll have one study hall period (off-campus) because I’m doing pre-calc online.
I want to do something in science but, I’m not sure yet.
Wait your school lets you take 7 courses in one year? lucky 
Will you take Honors Chemistry and Ap Physics 1 in subsequent years?
You need one year each of Chemistry, Biology, and physics.
3 APs may be overkill, but since youre taking 2 APs as a freshman (the easiedt APs, certainly, but APs nevertheless) and getting a 4.0, itsworth trying. Asl your guidance counselor if youd be allowed to switch to honors psychology if after a month AP psychology turns to be one too many APs.
My school doesn’t offer honors psychology but, I talked to some upperclassmen and they say AP Psych is super easy at my school. As for science i’d be taking AP Chem 11th and AP Physics 1 in 12th if I continue the AP Science track.
(For AP chem there is a summer chem honors class that I’d have to take.)
I thought 7 was too little Nearby schools do 8 or 9 courses a year.
Excellent!
Top colleges expect 5 core classes a year, and 6 classes every year, with 8 AP’s total over all of HS, including some in the “core classes” whenever possible. The 6th class can be something you’re interested in, an elective, or a HS graduation requirement like PE or Health. If you have more and you can handle more, good for you, but taking 7 classes is 100% okay, no college not Harvard, not MIT, not Stanford, not Williams… no college expects 8 classes a year.
(core classes are English, Math, Science, Social Science, Foreign Language).
Of the three AP courses you have listed, world history and biology are usually seen as “heavier” than psychology.
It is best to complete all of biology, chemistry, and physics in high school, but they do not all have to be AP level.
Is there any reason precalculus cannot be a regular course versus a dedicated online course?