Your first step is understanding what went wrong. You'd be surprised how many people don't bother to do this. Why is it important? Well, let me give you an example not related to relationships. Let's say you have a car and it won't start. You want to get it running again but until you can fix it, you need to know what's wrong with it. Is it the battery, or are you just out of gas? Did the starter go or is your engine literally shot? Unless you know the precise cause of the problem, you can't fix it. Agreed? Well, relationships are no different. Unless you know why the breakup happened, you have no idea how to fix it. So this is the first step.
Next on the list of things to do is to avoid the common mistakes that people make when trying to get back with their ex. This list is huge, but the most common problems are begging, stalking and ridiculing. Begging your ex to take you back makes you look needy and doesn't work. Your ex wants a strong person. Stalking, especially today, can get you locked up. You don't want to be parking your car outside their home or following them all over town. And badmouthing your ex, which is something so many people do, is certainly not going to get your ex back. So don't do it. If you avoid these three things, you'll give yourself a good shot at getting your ex back.