I am moving to a new school for my freshman year of highschol. and im freaking out?

i don't know anyone and i am freaking out! i don't know what its going to be like and i am super nervous what should i do?!?! plus im really nervous about guys they have always been a problem because of my body maturing so quickly yet being so petite in the past i have been called dolly parton ik i look good but it makes me uncomftarable wat do i do!?!?!?!?