The 'Pokerface' hitmaker admits it can be tough being in the spotlight all the time as she struggles to feel "normal".
She shared: "I do know isolation because I'm famous and it's hard to go be normal all the time. And when you meet people in public, 99 per cent of the time, people aren't that interested in really getting to know me. There's sort of a wall between us that they think something of me that I'm not. I'm really just a human being that makes this ... stuff."
But the 29-year-old star credits the cast and crew of 'American Horror Story: Hotel' for making her feel "happier" than she's ever been.
She gushed to E! News: "I'm happier than I've ever been now. Because the people that I work with really, really care that my life is different and really, really work to make sure that I feel as normal as possible, so that I can have a great time and just be a normal girl but be a woman for Ryan on film. Or you know a haemophiliac.
"It's important to work hard, and making money is important to survive, but what's more important is that we support one another through the challenges of life."