Music
Rex Features
The 'Bulletproof' star admitted that she has been experiencing mood swings brought on by the pressure of maintaining a busy schedule.
"At the moment every day is a bit different, some days I feel good and others I feel stressed," she told the Chester Chronicle.
"Not so much about the album and the pressure of doing well, but the pressure of what this job involves."
She added: "My mood all depends on how tired I am. I think definitely over the last few weeks I've been asked about pressure and I just say, 'I'm fine', but I had a moment recently where I was like, 'Maybe I do feel a bit pressured'.
"I just want to do my best, and I'm so happy the album is out now. We have been working on it for five years."
The 21-year-old recently admitted that she was "taken aback" by the success of their debut album, which charted at number two earlier this month.
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