Though, the grammar is out of place. Try putting what the character said in quotes. ( "10 am already?") Also the story line gets off at some point. I don't know how to explain, but this part is what I mean:
Mum tries to calm lilly down but lilly burst into tears and wanted to go home but mum wouldnt let her so at school lilly only had one freind
and that was her imaginery one since it was only yesterday she started school nobody knows her and wants to be her friend.
I think. in that part you should make a new paragraph Like.
Mum tries to calm Lilly down but Lilly bursts into tears; she wanted to go home, but her mum wouldn't let her.
At school Lilly only had one friend. (on and on)
See what I mean? But yeah, it is a nice story, hopefully you continue.