What does the line "I know every reason why" mean in "Wild and Wicked World"?

In Hayley Kiyoko’s song "Wild and Wicked World", the second verse goes like this:

Take me to the moon
Where I can sleep ’til noon
Living my today
I don’t care what you say
I scream and shout, they shun me out
And I’m trying hard to make it count
I get by, I can’t deny
I know every single reason why

I’m not sure what the last line is supposed to mean. It doesn’t seem (to me) to be related to any of the previous lines, and immediately after is the chorus, which… doesn’t exactly explain what she know every single reason why what. Every single reason why… what?