You get one thing correct here, in that self awareness is essential to the process of recovering from depression. That said, the whole of your article is essentially a new agey smokescreen for the tired assumption that people can effectively use 'positive' thoughts to magically think their way out of mental illness. Furthermore, your assertion that we are not our depression is off the mark. If we are shaped by our thoughts, and those thoughts are the product of the mind generated by our brain, then a depressed brain is just as authentic to the identity as a 'happy' brain.

The reason we don't identify with sunburns the same way we identify with depression is that a sunburn is a state of damage to an endpoint portion of our sensory feedback system. Depression is a result of structural abnormalities in the central hub of that system. Brain science has effectively progressed to the point that we can detect these abnormalities, guage their effect on mental health and then use any state change over the course of treatment to determine the effectiveness of said treatment.

Now I understand you're in need of putting a simplistic advertisement up in order to sell your book, but if you can't even get basic biology right, then your book isn't worth reading.