i can do some amount of reading, but when it comes to reading something like Das Kapital, my eyes glaze over

i can't be the only one who has this struggle. besides developing the practice of reading widely and deeply, what are some ways we can help ourselves to become the critical thinkers necessary for revolutionary work?

we can talk about tips/experiences like:

• getting your vision checked
• an adhd diagnosis
• reward structures
• joining book clubs
• note taking strategies
• etc

in essence, is there theory for "reading theory"?