This is so sweet and you're awesome for doing this
It took me a very long time to accept myself as nonbinary even though I have a preference for presenting as female. (Pronouns of both she/her and they/them are fine with me)
I thought that I was "just a tomboy" for the way I switched between presenting myself since that's more culturally accepted.
But looking back on my life I never felt fully connected with my biological sex and deep down always knew I was somewhere inbetween.
My biological family has been removed from my life for some time now due to unpleasant reasons, and this is something about me they will never know and wouldn't have accepted anyways.
However, I took a humanities gender and sexuality course a few simesters ago in college and everyone there were such sweethearts.
I'll never forget the feeling of finally feeling comfortable enough to come out to that group of people, and being met with so much support. They were telling me things like: "thank you for coming out", "we're so happy and honored you decided to share this with us", "oh no was I using your pronouns wrong!?" and some of them genuinely having tears of joy in their eyes for me.
The only person who knew about this before was my boyfriend at the time, and he also accepts me for who I am. Knowing that the entire classroom had my back made me feel finally accepted and validated with my identity. I'll cherish that class forever even if we've lost touch after it ended ❤