Score Prediction?

Well I took a Chemistry Diagnostic test today from the Barron’s book got a 590.
I am gonna be giving my SAT 2 exam in November.
I am planning to go through the full textbook so do I have a chance to get an 800?

Thanks in advance

No you’re done for 590 won’t get you anything, I think
Probably a 780 on the real test because Barrons practice tests are crazy

jk