She said: "I really thought I was on the way out. My husband Blake saved my
life when he brought me into the hospital.
"I often don't know what I do. Then the next day my memory returns, and I'm
engulfed in shame.
"I recently saw a picture of myself when I came out of the hospital, and I
didn't recognise myself anymore. I believe I live through pain - if you
suffer for something, it means it's important."
The 24-year-old singer has also confessed she self-harms because she suffers
from severe bouts of "depression".
She told Germany's Stern magazine: "I feel that a black cloud hangs over me.
I have taken pills for depression but they slowed me down. I believe there
are lots of people who have these mood changes.
"I'm just really lucky to have found this outlet - my music."