When your first reaction is not to take the action that you really want to do, ask yourself, “Who do I know has a positive attitude about taking action? Now let me borrow his mind, as it were. Let me borrow his brain in my own unique way.” Make yourself feel the way you imagine he feels about the situation and task at hand.
On a screen in your mind, see this person taking action with zrizus. Now on the same screen, see yourself taking action in a similar way. Run through that picture over and over again.
-from Rabbi Zelig Pliskin’s book: “Taking Action” – page 95.