Sometimes you just have to let go. You have to let go of all of the things that are holding you back. Let go of all of the worries and stresses that make you sick and turn your stomach. It's not healthy to hold on to those things and hold them in.
Let go of Grudges. More than likely whatever you're holding against someone is long over. And it's probably something you can workout if you try.
Let go of Hate. There's too much of it in the world. We're setting a bad example for future generations.
Let go of Jealousy. Instead of wasting time being jealous, go do what you have to do to get what you want. Make yourself happy.
Let go of Greed. You can have all of the money in the world, but what is it worth without love and happiness?
Let go of the people in your life that bring you down. Get rid of the people that don't treat you the way you should be treated. Say goodbye to those who don't give you the respect you deserve. It will hurt, but you will live. And once you've let go, you might even be happy.