I notice lefties. Im right-handed and when I was little and much dumber I wanted to be left-handed. So I did a bunch of weird shit to force it. Stuff like wrapping my right hand up for whole day, trying reverse controls for video games, wearing my watch on my right hand, etc. Some stuff did take, like the watch on my right hand, which ironically made my right hand more dominant. Being a lefty is the club that I was never able to join but think about subconsciously all the time I guess.
It's funny you reversed your game controls since, as a lefty, I have adapted to default controls pretty easily. Never even crossed my mind to change them. Definitely lateral thinking on your part.
I used to write with my left hand for many things thinking that I would make the right side of my brain be more active and have more creative thoughts. It was an experiment that went on for several years when i was a messenger and I had a manifest that I had to fill out, it was real messy.
Yeah when I'd "disable" my right hand I'd have to wait for the weekends or homework that involved writing wouldn't be able to get done. You did this as an adult? That's dedication. I think in time anyone could adapt if they had to or could afford to be low-functioning for a while but I always wonder if there's shortcut steps to start rewiring your brain to not automatically assign tasks to your dominant hand.
Yeah I was into a lot of biofeedback ideas and trying to hack my brain by changing your normal behavior. Most of the things you change go back when you stop doing those things, but sometimes things stay with you. I am much more empathetic now than I used to be.