When you are not yet ready to take action, visualize yourself taking the action that you would really like to do. This way even though you are not in a frame of mind to actually take the specific action, you are mentally preparing yourself.
Your mental pictures will make it easier for you to take action. When you run pictures of yourself doing the things that you want to do, this mental rehearsal will shorten the amount of time it takes to build up your willingness to act.
Mentally picturing yourself taking action will help you overcome the resistance you are feeling. Anything we've successfully done in real life makes it more likely that we will take that action again. Anything that we've visualized doing is stored in our brain as if we actually took that action.
([From Rabbi Zelig Pliskin's book: "Taking Action" - page 101 (Artscroll.com)])