txguy1977 saidI think the main issue was wearing underwear underneath the cycling shorts.
Perhaps. Men wear padded bike shorts commando. But review all the responses you've had here, especially about proper bike fit. You may obtain additional gains in comfort, control and pedaling efficiency by fine-tuning your ride.
I've been riding derailleur road bikes since 1962, and pretty much have my own "formula" down pat. I know every dimension on a bike I want, and there are literally dozens. But even I still consult with bike experts when I get a new bike, and have them assist me with my fit.
A road bike is like a pair of shoes - if the fit isn't exactly right you will have these problems. Fortunately a bike has a range of adjustments, whereas a shoe has few. With some good advice you'll hopefully find that your new bike will ultimately be your perfect fit.
And you'll learn that some components can be swapped for ones better suited to your physical size and needs. The bike will become customized for you, which is what most serious bikers do.