How to change gender in the middle of the school year?

I’m in a position where I want to change my gender (take testosterone) and am able to in the middle of the current school year. I’m afrraid of what my peers will think, I haven’t told anyone because I’m afraid they will think of me as strange or weird, especially my friends. Then again, I don’t really consider them as friends, but in a school of less then 100 students, what can you expect? (special school, not for mentally ill kids special, but lesser known for more connectivity with the teachers.)

I’ll be starting a different school (public) NEXT year, but I really don’t want to wait longer than I already have.. what shall I do??