Touch typing isn't about writing without looking at the keys, that's something that pretty much every dev I know does. It's about writing in an efficient way that minimizes finger travel, and zeroes palm and writ movement.

There's a reason F and J have bumps on them, or why we have two shifts, etc.

For anyone interested into relearning how to type efficiently I want to recommend this free website full of tutorials and exercises: https://www.typingclub.com/