I had to write down my big goal. Then the steps that would get me there. Each week I would add a goal as well as keeping previous goals. ie. drinking 8-10 glasses of water, then 8-10 glasses of water + 5 servings of fruit 7 veggies. Then getting steps etc.
I put the calendar where others can see it. It helps me see how many times I have worked out in a week or month. Plus if there isn't a sticker by Wednesday, I will get exercising. So I can get that sticker.