When I was typing around 110 wpm, I had bad fingering for a lot of punctuation. My advice would just be to make sure you have decent fingering for punctuation (like quotes, exclamation points, question marks, apostrophes, and dashes) and slow down your typing speed to practice learning better fingerings, before speeding up again.

I also mentioned in a previous post about "custom fingerings" where you can sometimes use your right hand to type "y" for words like "anyone" or using your left hand to type b, and things like that.

Thanks for your advice.