Learning to touch type so I can write with my eyes closed helps.
I use a thesaurus to check spelling.
With it, I can look up a simple, but related word, and look through the synonyms to find the correct word.
Reading faster just took time and patience.
I’m still slower than average, but I can read okay now.
Don’t try to push yourself too hard, because getting frustrated just makes things worse.
Keep practicing and building your toolbox.
does being dyslexic also make using spelling/grammar checkers hard?
Not OP, but In short, yes. Often, misspellings are so far off that they don’t really help much.
I was diagnosed before there was ever even such a thing as a word processor, so I had to develop a very tedious but functional hands-on toolbox that included things like paper with holes cut in it to remove distractions, writing with different colors, and using manual typewriters.
Once word processors and computers became available, I thought I was saved. But it actually set me back pretty far, because I built an overdependence on it. I was using the suggestion without double checking the word. My university papers turned into unintelligible gobbledegook.
I had to rework my entire dyslexia toolbox from scratch.
Thank you, but it’s taken a lot of frustrating work and time. OP seems to be just beginning the journey.