Dissapointed

I would like to state that I am thoroughly disappointed with my work and work ethic these past two years. I know that I need to do better and yet I have no idea how to better myself. I am struggling with being tired and my body giving up on me at times and I feel as if my love for film making is slowly dwindling down, crushed by the dirt that piles up on the flame. I know that it is almost impossible to do achieve good grades while also working an almost full time job, but only almost. If all I did was worked and studied then I could achieve it all but how in the hell could I be happy? I need at least some form of interaction with humans other than my class mates and my customers at work and yet when socialising becomes a factor my grades drop ten fold. Lately I have felt depressed and angry almost all of the time, I hide it with a polite smile, and act cheery and bubbly but on the inside I'm burning with tears that threaten to overflow at the smallest hiccups. I just dont know how to fix myself. Can anybody out there help?