There are a lot of people who are unable to manage themselves. It’s ultimately the reason why they can’t deal with the PMP training and end up failing the test, preventing them from become a Project Management Professional. It takes a significant amount of effort, but it is possible to mange yourself effectively and work your way to becoming a PMP.
It’s all about knowing how to prioritize and put important things first. It’s also about using what time you have efficiently. All those spare half hours add up and you can do a lot in that time if you know how to use it well.
A lot of people have achieved a lot in less than an hour a day. Sometimes, they had nothing but an hour of free time. All it takes is the ability to make sure you know has to be done in that time and doing it.