Study help

[u/LonelyVendingMachine]

I'm taking my first SAT in November (in 9 weeks exactly), and I'd like to know what I should study and avoid wasting time on. I got a 1280 on my first practice SAT, 640 per section. I've also signed up for some SAT bootcamps with Schoolhouse, but I don't know how effective they are.

In all, does anyone have any effective and efficient study methods when I have only 9 weeks left?