How to motivate myself after an abusive relationship?

I am a 19 year old girl doing my junior year in college.I was in a very abusive relationship for the past two years and i broke up with him six months back. Now i am totally broken from the inside..I have to study and do well in the exams so that i can have a good career. BUt i find myself totally unmotivated and unable to concentrate on my studies. However i try ,i am unable to concentrate for a long time. I have no dreams,no wishes,no aspirations now.. All the dreams i had in my life about my career do not mean anything to me after our breakup. I feel it will not give me complete happiness anyway as i dont have him. Please provide me ideas on how to get motivated again in life again..I want to move on and lead a life of my own without him..but i am unable to concentrate for more than five minutes..
In need of urgent help..
Lalitya