I think it is time we discussed this important topic.
Are most composers driven by some sort of inner insecurity that makes them want to "prove" themselves or "better" themselves with each new piece? Is there a tendency for all artists to suffer from various episodes of depression through their lives?
What in the first place drives the composer (you) to take part in an activity that is painstakingly challenging and offers little guarantee of economic reward or recognition? Do you have unresolved childhood issues? Did other great composers?
Can you write music best when you are deliriously happy, or is a little melancholy good for the creative process?
So just what is the connection between mood and mental health and the process of composition?