Ask HN: I can't read effectively anymore, how to fix this?

I'm not sure how to explain it, but when I sit down to read a peice of text, my eyes see texr, my brain parses text, but that's about it. Its like my brain is "out of foucs".Often times I have to run over a single sentence several times before I'm able to extract any meaning of it. On to0 of that I cant seem to fully read anything whether it be an article on the internet (which usually gets roughly skimmed and closed) or a book (which I'll skip through beefily and close)

When I was a kid / teenager, on the other hand, I could read anything fictions or non-fiction, technical or scientific cover to cover if I wanted, and even maybe get somethingout of it.