I've realized that not being able to obtain "happiness" is a root of my depression. I defined happiness. I made it so that if I was happy, it meant that I was drawing and writing everyday, earning perfect grades at school, being really thin, and so on and so on. When the way you live is dictated definition, it doesn't make for an enjoyable life. There's something to learn from the quote, "Have no expectations and you'll never be disappointed."

Happiness is happiness. Nothing else. Keep that in mind.