What is Time Management?

Time management is the use of skills, techniques and tools to help people get the job done and achieve their goals.

I think time management is very important, I am a student now, and as a student the most important thing to do study, we have many tests to do every day during the day time, and we have much homework wasn't done every day after school. I always think that I have a bad time management, because every time when I use my phone, I can't stop it, and after I finish using it, it's a long time past, so I slept late every day, because when I finish using phone, I still have many homework to do, and many things to study, so I am trying many ways, to let me have a better time management, so that I can have a better habit.