What happened with Demi Lovato?

I'm christian,but not blind to what happens in the world,when I found out about the situation of Demi Lovato,I was like'what's the price to be famous'?
She's got the dream of every girl,she is a singer,actress,travel around the world,have a lot of money,but..is that enough?
I don't think so.

Cutting,eating desorders,broken heart,that make us think,a life of a superstar is not always that shining,think about it..not everyday you are in mood to smile,to take a picture,answer stupid questions,see your face and other details about you(not always truthful)in a magazine,get along with your ex-boyfriend with his new girlfriend..that it's what fame does with a person.
Nowadays,the point is being perfect,flawless and there's no mercy with your little mistakes,no wonder why many girls around the world are depressed,don't you think?