Took typing senior year of high school, best class ever that I took.
Missed the first few weeks of school. teacher wouldn't let me in the class, finally agreed as I did extra practice. Took me 1 semester to catch up to the class, was 2nd fastest by the end of the year at 59 wpm. This was just typing from a basic schoolbook, not the best method.
Got "faster typing" by hossfield & nelson, practiced on my own through the summer and typed 76 wpm on my mom's old manual typewriter, and 72 wpm for a hour of typing.
Took a test my first time ever on electric typewriter, keys reacting all over the place during warmup, somehow managed to pass, good job and kept getting promoted higher in the school system, because of this as a basis, one of the best skills that I ever learned.
Later came in 15 minutes early for work to practice 10 minutes every day, and got up to 95 wpm perfect on high syllabic (difficult) material. That was many decades ago and typing still is very easy for me.
My spouse had taken typing 3 times and could only type 30 wpm. They never told her to not look at the keyboard! She practiced from my book, got up to 59 wpm in one semester and got a promotion to a much better position at her work.
Perfect practice helps you to improve quite quickly.
The quick brown dog jumps over the lazy fox.