I’m not a psychologist. Just someone on the internet with an opinion, so take it as just that- one person’s opinion.
As for improving reading comprehension, again, I’m just one guy on the internet, but I think reading quality non-fiction might be helpful. Try reading articles in a magazine like the Economist, or the Wall Street Journal or the New York Times.*
*I am not making any comment on the spiritual or political implications of reading those publications, just expressing the view that they contain quality writing.