if you're a girl just get a boy one there are better choices there too sometimes, i bet you can find a gothic one and you can custom make it yourself to be gothic lolita i'm sure.
I"m assuming your a girl cuz you want a gothic lolita jacket. And if you want a gothic lolita one try lolitakisama.com you can find some xl one there and it shows you if they fit you.
hope this helped. And no worries!