How to get over a breakup?

My ex and I broke up about a week ago. Just wasnt working for us. So it was mutual. We'd been together a year and a half. And most of it was good and the last few months just werent the same. Different things happened and We just weren't happy anymore. Ive been really sick with like a cold for the week when we broke up so I didnt really care much.. I was mainly trying to get better. Now that im feeling better, Its finally hit me that we're no longer together , nor do we talk or anything. I dont miss the relationship, feels more like I miss having that person to talk to. What do you guys do to really get over someone?