Excuses, excuses

Did you ever know you needed to do something? You know, really wanted and needed to do it? But then, when you went to do it, you just froze. Totally froze. Knees buckled, excuses made, and a golden opportunity just slips away like it's nothing. Nothing...just like it would come along again. Not wanting to be kicked out of your comfort zone. Geez...I had the words ready, I had the implentation ready, and then...nothing. I just left. Sigh. Help me God! How can I be so afraid of something I've wanted for how many years now? Do I really want it, or is it just the idea that somehow gives me a warm-fuzzy?