There is no happiness with out action.

If you ask for advice you need to be open to accept the advice.
-Cut your negative ties.
Seriously its emotionally hard not physically hard, just stop letting them bring you down.
-Just do it. Stop making excuses and just go into the world looking to find meaning in your own life, You choose the direction your life goes, sometime the greatest happiness is putting on a smile and pushing through the emotions, you might just finding faking a smile and a laugh and pretending to have a good time will cause just that a good time, because it means you are open to being happy.
-Never give up. It's you choosing not to be happy.
You can achieve anything you put your mind too :P
-Love yourself. Take time out to remember who you are. The more time you give to yourself the better you can feel because, often you seek love through others because you have neglect to give it to yourself.