Getting students motivated is hard, when they don't have something to work for!
I use this worksheet the first week of every school year. Students set BIG goals, ones that are achievable but require a lot of work. To get their buy in, I have them create several types of goals, and they pick one to report to me in advisement on a monthly basis.
Students like it because it helps them think through the steps to what they want to achieve, I like it because it helps me hold them accountable!