Im moving schools but i dont know how im going to settle in my new one ?

im moving to hastings with my mum but im leaving my old school i dont want to because it was really hard making friends even when loads of them went to my school and now there will be no one from my primary school and also my mum really wants me to go to a all girls school but i dont want to but shes not giving me the choice i feel really bad about it but cant wait at the same time have you got any advise xx =D