First, I know this has been mentioned before, but DO NOT PROCRASTINATE. Time favors the early and damns the late. This applies to all aspects of the project, especially the data collection, as that is the cornerstone for much of the project.
Secondly, choose a project that interests you and who's results you can use in your daily life. For example, choose something like food or drink prices at competing supermarkets. This way, you can actually USE the data that you collect, and it will thusly feel like less of an assignment.