Justin Bieber describes past drug use that was so bad his security would check his pulse - NBC News

It was like I had all this success and it was still like: I’m still sad, and I’m still in pain.

"And then you’re this young angry person who had these big dreams, and then the world just jades you and makes you into this person that you don’t want to be," he explained.

"And then you wake up one day and your relationships are f----- up and you’re unhappy and you have all this success in the world, but you’re just like: Well, what is this worth if I’m still feeling empty inside?”.

Bieber said that at times during his career, he yearned for a sense of normalcy.

But I was just going to do anything to be able to just be normal at that time," he said.

“To be honest, I am a lot healthier, and I did have a lot of things going on," he said.

"My home life was unstable," Bieber said about finding love with Baldwin.

On his faith, Bieber said he believes that God is "grace" and “every time we mess up, he’s picking us back up every single time."