I am an owner of a Glove 80 and I cannot overstate how benefitial it was for me. It improved my typing speed and overall comfort. Also, it forced me to type correctly, using all my fingers and place them in the correct keys.
To this day I think this is one of the best pieces of hardware that I bought.
Glove80 is super nice, though rather expensive.
I got one with low-force switches. It's very comfortable to type on, but between the low-force switches and slightly different layout from a regular keyboard (column-staggered, concave, symbols in different locations) I make more mistakes. So I usually type on my laptop instead, especially while coding.
I got the Go60 recently from the same company, been really enjoying (re-)learning how to type on it. It does take some time tho.
I'm not at your stage yet, but my gut feeling is that I'll reach the same conclusion. I've bought a Glove 80 and figured that since I'm learning something new I may as well go all in and also switch to a a more modern keyboard layout (I chose Canary for it's emphasis on keyboard rolls). I love the abundance of thumb keys, and I'm planning to make good use of them in my WM and Emacs, as soon as my typing speed recovers to the point where I can function normally again.