I want to use the female toilets
I don't see a problem with that. Have you talked about it with anyone?
Yes, I'm talking with them now over messages
If you are a man then you should not be allowed to use the toilets. If you are female then you can.
I'm a woman trapped in a man's body. Me using the female toilets is no big deal. I feel uncomfortable in the male toilet.
If you feel that way then you should explain this to the custodian. They will most likely allow to use the female bathroom.