"I went through a phase of being on tour and having a really hard time and not being home, and even just struggling with having a number one song," she explained.
"That was a time when I couldn't deal with anything. I was drinking, and I was not really myself. It's only when you come out of that phase you realise you were in trouble.
"Now that I'm not in trouble, it makes it more obvious just how close I was to losing it all. Luckily I never got to that point."
"I went through a phase of being on tour and having a really hard time and not being home, and even just struggling with having a number one song," she explained.
I sympathised with her for like 2 seconds until I read this. Your song 'only' peaking at #2 or whatever is in no way comparable to 'losing it all'