Time Waste

I, in most of the semesters, have had long breaks between my classes, which eventually led to me neither have the motivation to study nor to do something productive because I would tell myself I need to rest since I have a class coming. This has always led to me wasting most of my day time while not having the energy to study well at night time. Another factor contributing to me wasting time is seeing people around the campus, especially those whom I know at the free times and talking with them just to kill some time, but the problem is it gets out of control and I end up losing much of my valuable time. The challenge is that I cannot overcome my gut feeling that I should manage my time more wisely, meaning balancing my studies time and rest time, hence I will do well with whatever I have coming up in my classes and get enough rest to stay strong physically and mentally.