what should I do????

I really need some type of guidance, me and my boyfriend broke up almost a year ago after being together almost a year, and I still can't get myself to get over him. Everyday I see him at school and it just makes me sick. The thing is I don't even want him back its just the thinking about all the good times we had and stuff just makes me wanna break down when I see him. I guess I miss the affection of being with someone. I am talking to this guy and I think I really like him but he lives almost 4 hours away and we can't be together. I just need someone to tell me how to get through this time because I am being tortured by my own mind thinking about someone that I really don't need in my life  . I'm just stuck😞😞😭😭😭😭