I may be able to buy a new bike but I am unsure about this> When I made the driving school and I had to set up my seat every time, my instructor said that my legs are really long, but I am short on my arms.
How should I approach this situation?
Buy a stock 29 inch wheels bike with a 20 inch frame, and just put a shorter stem on it? Will that work lol?

Thank you all for your help.