Are these prep books good enough? Too many? And how should I start?

<p>AND minus the direct hits book, I’m just getting Essential 500, and minus PWN the SAT Math Guide. I don’t have a lot of money…
That math guide seems to be for anyone under 650. I got a 67 on my PSAT in 10th grade, probably got higher in 11th grade PSATs, so I’m getting Chungs.
So I have about less than 2 months, are these books too much? I’m still taking it again in March.</p>