Never regret something that once made you smile.
Some mistakes are too much fun to only make once.
Go ahead, Take chances. Tell the truth. Date someone totally wrong for you. Say no. Spend all your cash. Get to know some one random. Be random. Say I love you. Sing out loud. Laugh at stupid jokes. Cry. Apologize. Tell someone how much they mean to you. Tell a jerk what you thin k. Laugh until your stomach hurts. Live life. Regret nothing.