There are many things that we should do, but we procrastinate. We delay taking action. Doing nothing is often much easier then taking action. What can you say to get yourself moving? You can say, "Just do it."
Sometimes we really have a good reason or reasons for hesitating. Deep down we may feel that it's better for us not to take the action we're postponing. But we aren't yet clear about the entire matter. If you have an intuitive feeling that it might be unwise to take action, then wait. Think it over some more. Consult others.
But when you know that you or others will benefit if you take action and you don't have a valid reason for procrastinating, tell yourself, "Just do it."
(from Rabbi Zelig Pliskin's book: "Conversations With Yourself", p.141) [Artscroll.com])