Wedding Dress Shopping

Hey Everyone! I’m going dress shopping this weekend and am absolutely dreading it. I have always had terrible experiences trying on clothes and now avoid it at all costs. How do I go in there knowing the dresses won’t fit and they’re going to practically ratchet strap me into them so I can get an idea?

For reference: I’m a size 14 in jeans//XL women’s tops. So when I’m looking online most things they have in stock are going to be way to small or way to big. Not much of a midsize selection