You can call yourself cis or Ming the Merciless if you like.
Don't call us cis. We reject the magical thinking on which the term is based: that the nature of being female can be identified into. By forcing us to accept the term, you force us to believe that woman is not a sexed state of being, with various lifelong implications that we can't escape, but a shared "feeling". And one that can be felt by a male who recognises it as female. And is not felt by transmen or non binary females. In other words, absurdity. And not at all the same thing as a personal feeling of disconnection with the natal sex of one's own body, and a desire to exist as the opposite one.
I saw you upthread rejecting the word "woman" because you don't like the associations. That's ridiculous. It means "adult human female" - that's it. It recognises the sex of your body and all the things that entails that you can't change. It doesn't say anything about how you must identify, to whom you must be attracted, how you dress, the colour of your skin or anything else.
It's liberating. It recognises the protections you can't help needing and it doesnt suggest anything about what you must wear or do to "look" or "act" like a woman. It literally is about being, not any stereotypes.
What's not liberating is obfuscating this fact so that womanhood becomes a costume or a feeling in a male person's head.