It sounds cheesy and corny but how do you mend a broken heart.?

I was in an intense relationship and was abused. He has moved on with someone else now. I'm stuck in the same place. He was my first ever boyfriend which makes it worse, i've tried watching romantic comedies and i've rebounded off a guy as well but it made me feel even worse. Even though its cowardly and i'm ashamed to say it, in september i took an overdose, this really isn't how i envisioned university life would be like! i'm might be be working in america for three months which is something to look forward to but i just want someoene to lie to me and tell me one day i will be officially over him. thanks x