I’m the opposite, which is something that runs in my family. Most of my height is in my legs. I’m 5’-9-1/2”, but my inseam is 32”. Which means my torso is relatively short. I sit shorter than most people, which is frustrating in a theater or stadium. And my knees usually hit the seat ahead of me in an airplane. But I have a very long stride when walking.
My expected height based on the formula above is a little over 5’-10”. I’ve been convinced for years I robbed myself of some height by food restrictions to keep my weight down for wrestling my freshman year in high school…
And to the OP, maybe read the Vorkosigan books for inspiration?
I read them over 30 years ago, and still remember being impressed with the short protagonist who is driven to succeed despite his physical disabilities.
On the screen, there’s Peter Dinklage, who has played many roles as a confident person despite his height.