Welcome to SoM. And you are right. Magick does have its limits for us. If you look, you will see most of the spellsinvolving vampires, werewolves, etc are in a heading labelled fantasy spells. Thats because they are just that. They are for fantasy and have no real world application. The beauty spells are mixed. Some work, but any of the ones that actually change your appearance (eg hair color/eye color spells) are fictional.
While the moderators do what they can to control what we call 'fluffy' spells, they cannot always keep up with it. And since there are some covens who do not monitor what spells are written, a lot of fluff can get out there very quickly.
But you are on the right track. Trust your instincts. Read up on what magick can and cannot do. We have plenty of threads in the forums covering this very topic. I would also suggest getting a copy of 'The Inner Temple of Witchcraft' by Christopher Penczak if you can. And if you have questions like this, you can always ask in the forums just like you did for this. We love to help.
So again, welcome to SoM. We are glad to have you here.