TIFU by never learning how to write correctly

Since I learned to write when I was five years old, I have been told that my penmanship is sloppy and hard to read. I've since adapted my handwriting to block letters and that's improved things drastically, but still I found myself not satisfied with the look of my writing.

I just started going to college again. I was rapidly taking down notes during a long class when I noticed a nagging pain in my right bicep. Felt like I did 400 reps of 1 lb weights. as I was stretching my arm out, I realized how weird it was that my hand or forearm didn't give out from all the writing; it was specifically the most anterior portion of my right bicep.

In a total bolt from the blue, I put all the pieces together. When I was in my first year of grade school, I had broken my right wrist and was in a cast for a good amount of time. I never learned how to use my wrist or hand while I'm writing. I watched my arm as I wrote some nonsense and there it is. Forearm stiff as a board, moved entirely from the bicep.

Can't believe it took me 30 years to figure this out lol

TL;DR: spent my whole life writing like a busted six year old