Simple doesn't mean easy.
I used to suffer from severe clinical depression and ultimately the only thing that's helped was to learn how to control my thoughts. It still rears its head when I'm tired, hungry, or drunk enough so I don't have the energy to control my thoughts. Hell, sometimes I just relax too much and forget to and it comes rushing back.
But on the bright side, the need for constant productive output has really helped both my career and my physique. Pros and cons I guess.
Ultimately I find this much more desirable than the antidepressants that just made me numb to everything.