How to be more comfortable with my gender identity?

I'm genderfluid and I want to be more comfortable and confident in my own gender identity. Like- my friends know that I'm genderfluid and they always use the right pronouns and often ask which one they should use on certain days (I love them for that). But even when I have my masculine days I still often tell them to call me she/her cause I don't feel like I look masc enough to be called a man. Same with they/them pronouns, I love using them but I feel like I'm too girly for it(also, in my country neutral pronouns are still something very new and people often say that people using neutral pronouns are ill or something like that). It's not like I don't accept myself cause I'm proud of who I am and I'm not ashamed to say that I'm genderfluid and lesbian but I wish I could stop caring about appearance and use the pronouns I want, no matter what I look like.

You understand what I mean???