Would I need some kind of corset?

I had a photoshoot for a jewelery art project in school and the outfit I wore looked good, my photographer and I are happy. Now I want to make a dress or costume inspired by it, but the problem I have is I want to separate the top and bottom parts so I can customize my outfit however I like. But because the top is already gonna be something like a fashion corset and the bottom might become a bit heavy so I know that I need some kind of support garment or something to not hurt myself from a too heavy skirt cutting into my skin. Does anyone have any recommendations for something like that?