Going through a break up stinks, there's nothing fun about it and it usually just leads to a sad depressing period of time in your life where you just feel lost, confused, and probably a whole bunch of other emotions all at the same time.
A lot of people think that once the break up happens, its a done deal and they'll never see their ex again.
This is true a lot of the time but if you know what you're doing you can get your ex back into your arms and start a loving relationship again.
The first thing you should do is to hide your emotions from your ex, I know this sounds bad but you have to stand strong and come across as an independent person who can easily move on with their life.
It may be difficult but you'll just have to find ways of getting all of the negative energy out of your head, lots of exercise or long walks usually does the trick.
Do not contact or drive by your ex's house, don't try and actively mend the relationship...
I know this sounds odd but it works for a reason, people want what they can't have.
So first you have to shed and insecure, jealous, controlling, or overall annoying habits you had in the past that may have led to the break up.
Once you've straightened yourself out, you're reading to start taking small steps to winning the love back with your ex and being happy again.