This is one way. I give myself goals to accomplish, which are achievable at first. As I continue to surpass my original goal, I amend it to another goal. My monthly book sale goal is to sell at least 20 books a month. I achieved that, so I increased it to 50 books. I achieved that also, so I changed it again to 100 books. What this means is I have 6 more days to achieve this goal. Think I can do it?