Cal Newport, a guru in time management for students, explains how planning is essential to ensure that you get things done. You need to plan ahead and block you time.
He suggested a method called Time Blocking – which means dividing your page of your planner into two columns: on the left column, you dedicate two lines to each hour of the day and then divide that time into blocks labeled with specific assignments. In the right column, add explanatory notes for these blocks where needed. As things may change, you can add those changes in the right column without thinking that you have completely scuppered the plan of your day.
I call this planning method time blocking. I take time blocking seriously, dedicating ten to twenty minutes every evening to building my schedule for the next day. During this planning process I consult my task lists and calendars, as well as my weekly and quarterly planning notes. My goal is to make sure progress is being made on the right things at the right pace for the relevant deadlines. Cal Newport
Try it and see how it works for you. For more information, read the full article on Study Hacks Blog, from Cal Newport.