there is a good chance they have a good time-management routine down. But don't be discouraged, you can manage your time more effectively too. It's all about scheduling your time better so you can fit the things in your life that mean the most to you. To do this, you will need to invest in a good planner. You don't necessarily have to have one that has hourly times, but find a good one that gives plenty of room under each day for writing down activities, to do lists and appointments.
Once you have a planner that you like, start writing down the important things that you really need to keep track of such as soccer game and practice times or days that you carpool. After you schedule the things that you know need to be taken care of, add some to-do's such as baking brownies for the bake sale on a certain day or writing that press release you are been putting off.