Getting out of a SAT slump

<p>I took the March SAT and got a 1970
630 Critical Reading
650 Math
690 Writing 10- essay
I prep here and there but I notice no improvement I miss the same number of problems each time. About 5 in writing, 10 in critical reading and 5-8 in math.
Can anyone give me any advice on how to get to the 700s in each section</p>