This post could have been written by me word for word three years ago. I now identify as agender, and prefer they/them pronouns.
I just never cared at all about gender. I don't really have a conception of gender, I never really learned it growing up beyond "girls wear dresses and boys wear pants" which always seemed silly to me.
I've never acted according to my understanding of gender, I've just acted how I've wanted to. Someones gender has no impression on me, including my own. I don't present in certain ways or do things to look masculine or feminine or androgynous, I just want to present and act as I want to. I've never wondered if I'm too masculine or feminine or not masculine or feminine enough. It just has no significance to me.
I thought I might be non-binary for a while, but I found that the label of agender is more comfortable for me. You might agree with everything I've written and prefer to call yourself non-binary rather than agender, and that's perfectly fine. You also might prefer to not label yourself at all.
Consider if you would be happier calling yourself non-binary, or agender, or genderqueer, or anything at all. Don't feel the need to arrive at a concrete label that you have to stick with and commit to if you don't want to.
Also if you want to ask anything else, please do