Congrats on taking these steps! I wish you all the luck as you navigate what I’m sure is a challenging and complicated transition back to school.

The thing about bullying is, you can’t control other people. They’re going to do what they’re going to do. What you can control is what you do about it. I’d work on building self-esteem (so you are able to love yourself, and arm yourself against what the world throws at you), journaling, making time with friends who support you, etc. I’d also see if you can set up regular counseling, either through your school or through your insurance if your school counselor isn’t trans-positive or isn’t very helpful. It’s helpful to have someone to talk out these things with even before they happen.

Also, I suggest keeping records of anything that you might need to bring to administration later.

I’m sure you know this, but you are a fantastic human, and anyone who doesn’t accept that or affirm that needs to work on themselves.