Does anyone struggle with this?

I’m an A-Level/Sixth form student who does 3 essay based subjects. That obviously means a lot of reading to do. When I read over a text I feel like I’m reading with my head and not my brain so I have to re read it over and over again and most of the time it still won’t properly go in. Does anyone have any tips to overcome this? I do actually really enjoy reading for leisure it’s just academic reading I think I struggle with although it does sometimes happen when I’m just reading normally .