Tell yourself 'Yes'.
Once a day. Life is too short to limit yourself. If you want something, go get it.
Say yes to the simple things, the extra scoop of ice cream, the friend who asked you to go out when you have a million other things you could be doing, the date that you're nervous to go on because your crazy best friend set it up (but she's sure you'll like this one).
Say yes to the big things. Take chances. Because if you don't, you could be missing out on something you've been waiting your whole life for. When life hands you an opportunity, take it. You're shaping your life now. Do it for you. Do it for the person you've always wanted to be.
Tell yourself 'Yes'. See what happens.