Critical Reading help

Guys I am stuck between 450-500 in the critical reading section. I want to score 550 + . How can I improve?? Please help guys

vocab and practice

I get 3/4 of all sentence completion correct. But the passage based readin questions are my weakness

Practice. Understand your mistakes. There is no other way around.

If you miss 1/4 of sentcoms you’re giving away 50 points.

Use direct hit core vocab