ACT Reading help?

I just received my April ACT Scores (State wide testing) and all my scores seem to be ok except for my reading score

English: 33
Math: 34
Reading: 28
Science: 34
Writing: 32/10
Composite: 32

I want to raise my reading score up to at least a 34. (I’m an international student so I have to have a strong english/reading score as well)

I’ve taken all the tests in the red book, they seemed pretty easy but my reading score is stuck between 30~32
Actual tests seems to be harder so I usually get a 26~30 on those.

Is there any way for me to improve on my reading/english section? Taking practice tests do not seem to be helpful right now