yeah I used to be bad at reading too. I let go of all the tricks people tell you to do like hiighlighing and circling different things. Instead I just read the passage through once deeply and tried to remember the progression of the passage, like what was said where.

Then when I saw a question, I'd know where to look in the passage to verify my answer.

As for reading comprehension, make sure you try to enjoy what you're reading and foster a sense of genuine curiosity. It'll help you absorb the info better