The 36-year-old singer said she battled with alcohol and bulimia, but has worked to get healthy in time for a new album.
"I'm not better than the rest of them, I've self-medicated with alcohol. This is very exciting for me, this chapter in my life, new album, new label, new team behind me," she told the Daily Star Online.
"I get to release everything that's in my head. I do hot yoga, so you sweat it out, it's a massive release. It really is like letting the weight off your shoulders and pushing yourself to the limits," she added. "That's the great thing about mind, maturity, growing, as a woman I'm finally the most comfortable I've ever been in my own skin."
On her struggle with bulimia, the singer said she's had lots of support from fans and in turn, she hopes to support those who seek her help.
"Fans have come to me and asked for help, I just want to hold them and lift them up. I want to be a light and strength for them, it's a dark, hard condition and addiction," Scherzinger said.
"I'd say speak to someone about it, speak to someone who is preferably educated on it so they can help. Don't give up on fighting it; continue to get the voices and demons out so you can let go."