I’m not sure if creative people get more depressed than others. But from my perspective, it is a state of mind that comes with.
I feel it is a Yin and Yang. Maybe it is like athletes, you can't run all the time without hurting your muscles.
Me, I use my muscle called the brain, and I can't be creative all the time without burning out. And with that comes depression.
I live with this all the time. I know that the sun will shine after the rain. I know I will burn out and I know depression will pass and I will be back in the game.
I just need to focus on the positive side of life. When I’m down I look forward to when it is over and not focus on the pain, if I do that I will only stay longer in the depression.