So this is going to be super obvious to many of you and a revelation to the rest, but USE SOME WRITING SOFTWARE.
Full disclosure, I'm late to this party. The only tool I'd use when writing regularly was a spell check and it showed. Every day I see writers on the board here with some really good ideas but the story suffers because creating something hot is a different skill set from transcribing it.
I ended up downloading Grammarly because it's free, then ran a story through it that I was actually kinda confident in. One that I'd certainly "self edited" a number of times. The program picked up a wild number of errors and it's a lot more readable now.
Anyhow, if this entire post feels unwieldily, that's because I wrote it on my phone which only has spell check lol. Your stories deserve the best presentation you can give them, don't slow down at the finish line.