"My life is my message."
You don't have to wait for a sign to go out and do something. You shouldn't have to be told to go out and do something great. If you're waiting for a sign: this is it. Well, actually, your life is it. Let your life be your message. The life you live should tell you what you're supposed to go out and do. What kind of message your life is telling you, I don't know, but hopefully it's a great one! And even if the message is saying to go do something terrible, you can take that negative message as a reason to do something good instead. Your life is your sign. Get up and follow it!