If you cannot read for pleasure, start. It can be anything: history, how-to books, philosophy, great literature, popularized science, theology. I recommend a bit of everything. But learn to read for pleasure in the same way one might lift weights for pleasure. That way, even if something feels boring or unpleasant in the moment, it could be good for you when you finish. In order to make time for this you’ll need to watch less television, but it is worth it because reading for pleasure improves your ability to study by increasing certain brain functions that correlate with empathy and problem solving.
I recommend making a list of some classic novels, essays, and non-fiction books and trying to read them. It is best to read a chapter at a time and write questions and notes after each chapter is finished.