Having more calories a couple days a week sounds like a good way to make it easier to stick to.

This is just me, but I find that when I'm working on goals it helps to have spreadsheets and charts (and twenty seven eight-by-ten colour glossy photographs with circles and arrows and a paragraph on the back of each one explaining what each one was) to track my progress. I find it very satisfying and motivating to see my progress in graphical format. But I'm all OCD like that...