Needin advice for a friends issue at school...?

i hav been gd friends with a bunch of girls for over 2 years now but i and my closest friends hav grown up to b different to every1 else in our group, and also new people hav joined hu reli dont like me so our currently bein reli bitchy to me, my and my friend hav started to hang around with other friends and i feel much happier, but now i hav heard tht they dont like me hangin round with them i hav no1 else and i dont no wat to do, just want to b accepted for hu i am not all the rumours, or for the mistakes i hav made, please help xxxxxxxxxxxx