I never really dealt with your situation (self-learning a pretty good chunk of math), but feel free to ping/dm me if you need a hand understanding something (I used to teach math and miss doing it). So I don’t have specific references, just a broad outline of what to look for/the order

I’d probably start with what the US calls algebra I / II in high school, but I dunno what it’d be called in college; I taught a version called “intermediate algebra” but there’s not a ton of standardization among what colleges call “pre-college” level math courses. “College Algebra” is a fairly popular name that I think is roughly equivalent to (but a bit more challenging/beyond imo) Algebra II

You’ll have to backfill a bit (when stuff with fractions throws you for a loop, for example; watch just a few videos or whatever on that specific topic and do 5-10 problems from a textbook to reinforce it). I just want to emphasize doing (and checking) problems constantly to reinforce it. Move on when you feel good and can do a couple in a row, given the time pressure.

After Algebra I/II you should be able to go for trig. Precalculus courses are often half trig, after a small amount of a continuation of algebra II/College Algebra stuff

I could probably write a pretty exhaustive bulleted list of the most important topics/techniques traditionally covered before trig if it would help