You shouldn't have trouble finding clothes your size in the plus-size section. Take your measurements and figure out your sizes. It takes some time to figure out what looks good on you. Not everything looks good on everyone. You'll have better luck if you avoid sexy outfits and go for the average office-worker look. (But do what pleases you, regardless.) Next time, take a walk down the strip. Even if you look like an ape in a tutu, no one will give you a second glance. It's Vegas, after all.