How can I deal with time bandits?

I am one to suffer under a lot of outside influence that may sway my decision to place certain priorities over others, so figuring out a way to cope with and solve the problem of time wasting and management, was imperative. First off, I do have the habit of planning to take part in activity that doesn’t fall under the line of productive and I could probably be spending my time more efficiently.

How I plan to solve this is by replacing all the time I spend doing taking part in time wasting activity, and more time devoted to my school work and plan my schedule with more school work to give myself more incentive to do my work because there could always be an opportunity for me to improve my work.