Being Dudley Dursley

My old life wasn't so good, and I don't even know if I was sad when I left it. Now I find myself in a world that I thought was fictional, but a world I'd always dreamed of being in. Except, I'm not the badass character everyone wants to be. I'm Dudley Dursley. Yeah, this is going to be a pain. Self insert Fic. M for swearing, and adult scenes later on.