Reception dress..

I have purchased 2 dresses, and one outfit from cheap stores to wear at the reception. I keep changing my mind, and not liking them, they’re a huge downgrade from my ball gown and I wanted something much better. So I went to every dress shop within an hour of my home and still couldnt find something perfect. But I did find a dress I liked the look of, but it needs to be taken in around the waist/ possibly hemmed and I really want more of a fluff to it, like an A line dress just because I don’t wear snug dresses due to my belly sticking out(ugh) and I want to find a sash. I’m talking to a family friend that alters dresses on the side so that it won’t be expensive but I don’t know if it’s even possible to fix. What do you guys think? I am holding the dress back in the picture with my leg out because it’s loose. Ps ignore the “I’m too fat” writing also, I was sending pictures to my mom while trying several dresses on lol. And the other picture is showing how it shows my belly which I can’t stand. It shows how loose it is around the waist, my waist is smaller than the rest of me and that’s pretty much the only thing I have going for me as far as looks go lol. So I want it to be flattered.