Help me do preparations in the right way.

<p>Hello,
I am an international student. I took SAT (Physics-math 2- chemistry) But scored in the 600s.
Although I used perfect books such as Barron's and although I read everything in the books, I had low scores.
The test was completely different. For example, it never asked for what Rutherford did in his experiment. Or what organic substances should I add to get CH3COOH. On the other side, the tests were all about reasoning and basic concepts.
What am I missing and how should I study to get a 700+?</p>

<p>Thank you.</p>