How can I get over this heartache?

this is how im feeling so i can relate to this all i do is try to keep busy go out with friends, go clubbing do something you enjoy i.e a hobby just think that your able to do things you werent when with them. just try focussing on the bright side its their loss and your better off without them. have you cut contact? have you deleted everything to do with him? if you havent its almost impossible