If you want to become great at something, you might want to keep repeating it daily so that any problems you come across get cleared out. Develop experience by doing the same thing, because your mind will start to think of shortcuts and past errors that you can correct. Each added tweak is a point of experience.
What does it means when a lawyer has twenty years of experience, or an accountant has been accounting for nine years, or a public speaker has been routinely working audiences for over five years? The idea behind experience is that kinks and issues get worked out over time. The lawyer figures out what information is worthwhile to use in defense or offense, while accountants figure out efficient methods of monetary manipulation, and public speakers find ways to better engage with their audience.
If you want to correct your problems with reading comprehension, you can try reading twenty minutes of text at a certain level that is difficult for you each day, at the same time. Each time, you will figure out new ways to improve your understanding, because you will get down a concept like how subtlety can be used to send a message, or a concept like how examples are usually presented in text. There are numerous details involved, but each attempt serves to work on at least improving one aspect, because your brain processes while you read and adapts to lighten the load.
You can even repeat the same activity multiple times. This method might not seem as exciting, but even doing the same activity once each day will make you more efficient at it. If you read the same chapter of a book daily, you will likely figure out more than you can imagine, even though it is the same words you are repeatedly reading. Your brain quickly comes up with new things to improve in efficiency or understanding or memorization. There is no problem with doing the same thing, as long as you are improving in some way.

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Repetition is the father of learning.
Stephen: That is a cool way to put it. When we have seen something ten times, it is hard to forget what it was.