ABH will i get off with the crime?

[jay555]

I'm 18 and I hit a girl after she was giving grief on a night out. The girl is noted for being a trouble causer.

I then hit her again on another occasion because again she was again giving grief and i recalled her pulling my hair out the previous time. I then hit her a third time no so long back, she punched my best friend - possibly thinking she was me - so i ran after her and laid into her. she has had severve brusing each time. Ive been charged for ABH what do you think the chances are that i get off with this crime?