My Biggest Management Problem

To be honest, my biggest management problem is Time Management. I was very punctual and managed my time very efficiently before. Now, i can't. I kill my free times by watching movies, listening movies or busy checking mail and being online most of the time. I am taking five classes and working approximately 30 hours per week. I understand that time is very iomportant for me but still i can't. May be being tired from work my body needs some time to relax or might be not too much pressure from my classes. However, i manage to do my assignment on time but do not revise them. I am good at managing my finances. Very often my family obligations comes ahead and stops me from doing any thing else. As mentioned before in my introduction, i am from nepal where we live in a joiont family. The main responsibility of a son is to take care of their parents and family. We respect our elders and have to take care of them. This might be my biggest problem that i can't reject or manage against any other obligation.

http://www.youtube.com/watch?v=3u2qRXb4xCU