Back to sad again

I have no idea why I keep feeling like this every time I am alone. What is happening to me? How am I going to survive the whole year? I told myself to keep myself occupied but I cant seem to do it. I tried studying to keep my mind off but obviously I can't. Who can help me? I can't really stand it. I am going to spend the rest of the holidays at my friend's house so that I can study for my exams and also keep my mind off about all this. Feel so depressed when I am alone. I kept wondering, what is actually happening to me? I mean, I know I am homesick but why am I like this every time I am alone. Uhuh.... what is going to happen when classes started? I mean I am going to be in my room the whole time. I guess I'll have to cope with it?? I am not sure. sigh... what to do.. I think going back to Miri has trigger off my homesickness. I wasn't like this before I went back. sigh... I feel like hitting myself for feeling like this.