How to describe depression?

https://www.youtube.com/watch?v=a1Y1ocyudjs Contrary to what many people believe depression is a real disease, it can happen to anyone anytime, and it doesn't go away that easily. It takes willpower, patience and lots of courage to combat it, because it can be resilient. I went through it and know how is like. It is real and difficult.And this is part of my story. https://www.lucycolemanlife.com https://www.youtube.com/watch?v=bKUWv5HpApE