It's amazing what a year can do

Surround yourself with friends. They are your first line of defense. Let them help you filter out the people who will do you no good. 

Let go of the ones who cause you pain. They don't hurt you, sure. But you allow yourself to feel hurt in their company. Cut them lose. Have enough respect for yourself to recognize that you're deserving of a little more than leftovers. If you don't believe it, then lie to yourself. And do it well. 

Your happiness is you. Not the people who come and go. Just because someone makes you happy doesn't mean they're your happiness. You may be misled. Retreat. Go away inside (like jaime). Let your friends remind you you are your happiness. Let them bang your head against the wall till some sense falls into place. 

Time and distance will help. If you can't physically get distance, again, go away inside (like jaime). Notice the good things. Let your friends remind you what it's like to have fun. Start a new hobby. Sooner or later you will realize, your happiness did not depend on one person. 

Cry. Until you think your eyes will fall out. Then stop.  Stop believing. Stop hoping. Stop trusting. Leave your heart some place secure. Maybe with your friends. When you're calloused enough maybe you can open up. Until such time be the one they call stupid for being walled up. The one who will never find anyone because they are too reserved, too afraid  to let anyone in. That shouldn't bother you because you're heartless. If it bothers you, remind yourself that you are not trying to fall in love. You are but trying to stitch yourself together. 

It's amazing what a year can do.