As much as I love the retro look of shift dresses
I've found that belted dresses look better on me and they actually accentuate my waist.
I do own a few pair of skinny jeans. None of them are ultra skinny, and normally I have to go up a size or two to accommodate my rump and thighs. Doesn't make me feel that skinny after all. But I digress. Every fashion trend isn't made for every person. And... that's OK. Accept what you've been blessed with and WORK your assets to your advantage. "Work" <in my best RuPaul voice>