I find spaced repetition Anki flash cards surpisingly effective for this kind of thing.

You’d think remembering tonnes of shortcuts and commands and flags would be alot of effort but it’s surprisingly low effort when using cloze deletions and phrased like:

- “… is to delete the last word” - “Ctrl w is to …”

If you’re not familiar with spaced repetition it’s worth checking out, especially if you have a holey memory like mine.

https://ncase.me/remember/

post-it note until you dont need it anymore

I hate to be the AI guy, but a coach that lived in my terminal and corrected me when I do it the slow way would actually help.