Most Helpful Guy
Most Helpful Girl
Remove all the things that reminds you of him , pictures , text messages , gifts , phone number and don't "stalk" him on social media to see what he's up to.
It's ok to be sad but don't forget to move on you do this by keeping busy with your study , sport , hobbies etc.
Going out with friends is a great distraction and it's also nice to meet new people I mean who knows maybe you'll meet someone interesting that makes you forget about the other person that hurts you.
Remind yourself that you too deserve someone that can give you the same affection back or more :)
When you think back about the unreasonable things he did to you then you can easily say to yourseld " Hey I didn't deserve that screw him it's his loss !" ;P
You'll be fiiiiiiiiiiiiine don't worry ;)1