I'm a straight guy that likes the idea of being a female.
Why do you find that idea so appealing?
Because they are so much better than guys. They are all my idols.
It's fine to think that women are better than men in general. But if you actually want to become one yourself, you should be absolutely certain about that decision. It's a big transition, and you could end up miserable if you make the wrong choice.
I already bought fake tishes and want to change my name and also told everyone about it.
It's okay to like the idea of being female yourself, but it sounds like this is something that you should only do as a role-playing exercise.  Actually transitioning to another gender would require surgery, and would subject you to a lot of prejudice from others in society.  I suggest just keeping it as a private matter.