Sayori and Sephiroth

yes, its called gender fluid, idk abt the others

if your sexuality and romanticity change a lot, that is called abrosexual. Genderfluid is constantly changing your gender expression/identity.

Yes

Genderfluid- gender frequently changing
Abrosexual- sexuality frequently changing
Abroromantic- romanticity frequently changing

If you sexuality gender and romanticy it's called genderfluid, abrosexual, and abromantic. But if change your mind and think you are not the gender, romanticy or sexuality you were before then it's all the process of questioning and your journey to find your orientation

Yep its 100% Normal