HELP

and PD

PLEEEEEASE !!!
I've met my new class : only 19 pupils ( maybe one or two more will arrive next week ) , but ... many "issues" !!! Help !!!
Ill have a boy from China , a girl with anorexia , an adopted boy (from Bolivia ) who lived
on the streets for the first 4 years of his life . Ive already met him outside of our school , he is still suffering from his past severe privations
poor kid , he doesnt trust anyone but his new parents
We also have a kid potentially aggressive , with recently splitted parents
and a girl from Denmark ( not sure if she can speak Italian ).
But the pupil who makes me worry the most is a boy who is psychologically disturbed
To be honest with you , I am not happy to have all these difficult kids in the SAME classroom , Im afraid that there will be fighting and too many troubles .
Ive talked about all of this with my head teacher
but we need to accept all the kids who apply for our classes ( the school needs MONEY) and I am the only teacher in the 1st course with patience and the necessary background - words of my head teacher !!!
I know Ill do my best and I feel I already love those kids on top of all though I have a brand new colleague ( for Maths ) , so well also need to learn how to work together , she should be my help.
Sorry , I wasn't meant to rant ... but I needed to talk to friends !!
THANKYOU for listening to !!
HAPPY WEEK to each of you !!!! 
laura