if you have a really pronounced anterior pelvic tilt that can make your stomach stick out a bit more, so some core exercises and glute strengthening could help that.
Otherwise the good professor hit it on the head I think.[/quote]
Which exercises specifically did you have in mind?
there’s loads to choose from. A good start would be planks, bird dogs and glute bridges. A few sets of those every day. Once you get good at those you can move to more advanced variations.
It’s also a good idea to stretch the shit out of your hip flexors too.
Be advised that stuff like this takes a VERY long time to fix, so be patient.