For me personally it runs in the family. I didn't realize it until I was older, but looking back and reflecting it just so happened that everyone in my family line suffered severe depression when they were younger.
I just happened to have the distinction of being worse off than anyone else in my family history having what is effectively a continuous existential crisis from age eight to fourteen is kind of rough desu
I guess I should just be glad that it happened when I was young so I learned good coping mechanisms that I can take with me through the rest of my life. In then end I would say I'm better for it.
Don't know what everyone else's excuse is.