Switching to a new Keyboard
I used to run a standard 108 key. mushy, membrane, Razer Deathstalker when I got my first desktop computer, and it was perfectly fine... For a clown!
Basically as soon as I reached university I formed a temporary fixation on mechanical keyboards; believing that they could make my tying experience so much better that the words would just start flowing off the page. (They of course didn't)
4 Years (and no degree) later I was working an IT job where I had to babysit old people and their printers and once again the mechanical menace took over my body. Where once an Anne Pro at a megar $60 would have sufficed I now would not be satisfied unless I got my hads on a split Mistel Baccaro md600 for $150. A comical amount of money to spend on a gadget like a keyboard but at least it would be the last one I need...
I don't even remember how long it took but basically I used that thing for a few months at best before realizing that it was a compromise or something, I don't remember the complete details but I gave up on that thing (it's still sitting in storage somewhere though) and ended up building my own ergodox, which at the time had to be the pinnacle of ergonomics (except for every 40 year old ergonomic monster, looking at you kinesis!), using a builder kit called the alpaca hotdox (v1). And it was awesome! Used that for another 4 years and never looked back. Oh and it also cost like $350 to build which is a ludicrous amount of money for a keyboard, but luckily it'll last me forever and I won't have to do anything with it.
Now I come to you having spent $600 on a keyboard to tell you once again that this will be the last upgrade. It doesn't get better than this okay. The glove80 with brown switches. And I can finally give you the most important piece of keyboard knowledge I can give.
You're endgame is almost here!
A split keyboard will force you to practice proper typing technique only so far as it forces your fingers into the correct channels.
And the glove80 feels really really good with the glorious engrammer layout since you never have to make horizontal movements with your fingers.
Basically you should do exactly what I did and get a regular split keyboard to feel like you're doing something for your hands, then get an ortholinear keyboard because obviously the last one wouldn't actually give you any benefits, and finally go for a proper change of layout on some keyboard with a curved keywell.
Good luck and this is the only way to learn to type and use a keyboard.