lonely girl :(

I have recently found myself oddly sad and lonely. like to the depressed state...and i've been trying soooooo hard to not think of it and try to avoid it but it seems as it won't go away. Like no matter how hard I try to feel good on the inside, I just can't accomplish it. it seems as though no matter how many people i have around me the intensity of the loneliness in which i feel takes over and leaves me with more sadness than happiness. I don't know how to suppress these feelings...I don't know how to overcome them.. I did my hair, I went shopping, I went out with friends but nothing is working this time. This time I am feeling it and don't know how to even hide it from myself.