Being a curious and tinkering individual, I was presently kicked out of the class. (Insert here rant on rewarding curiosity in schools, rather than punishing it.)
Today I have a bizarre, hybrid typing style, somewhere near touch-typing with a lot of error correcting, and occasional hunt-and-peck. It's odd... the hunt-and-peck occurs more when I'm typing nonsense like passwords. Words (and quasi-words in code and the shell) seem to come out just fine.
That said, it's nice to see that even in my 40s, I can improve at something over time.
A lot of the improvements in my typing, I owe to returning to mechanical keyboards. (I think... this is completely unscientific.) First, I switched to a Das Keyboard Ultimate, without labeled keycaps. This really forced myself to get away from the crutch that was the labeled keys.
Lately, I've switched to a Kinesis Advantage 2 ergonomic keyboard. This has helped more with my hand positioning, which seems to have improved even going back to a "default keyboard" -- I've noticed that when traveling and using my laptop keyboard, my typing has also improved.
I will fully admit that in addition to attempting to improve my typing and treat/prevent RSI in a non-scientific manner, I bought these keyboards for the eccentric nerd factor. As one does.