SAT Math Level II Help

Hello, everyone.

I’m new to College Confidential and I don’t know most of the rules around here. I live in a country where SAT isn’t so popular. That being said, I find it hard to find books around here, especially sat 2 prep books/blue books. I’m asking if anyone of you all is kind enough to provide me with the math 2 blue book pdf, since I can’t order it online nor find it in any nearby stores.

Another question, does anyone know of a good website/youtube channel that provides barron’s math 2 book explanation? I have been studying by myself for the past year (Bio/Chem/M1/M2), because my teachers aren’t that experienced. In fact, most of them don’t even speak English that well.

Finally, I am struggling in the counting/probability chapter, are they really that important? I heard someone saying he couldn’t find many probability questions in one of the official tests. Which chapter should I focus on? And which math 2 formulas are the most important? I have most of them memorized.

I know this sounds like a lot, but this may help me get that 800. Thanks.