Source: Bang Showbiz NewsGwen Stefani has admitted she found it "really hard" to cope with the demands of looking after her two children while focusing on her career.Gwen Stefani used to find motherhood stressful.The No Doubt singer - who has sons Kingston, six, and four-year-old Zuma with her husband Gavin Rossdale - struggled to juggle the demands of recording the band's first album in ten years, 'Push and Shove', with her home life and being a devoted mother and said she found it "really hard" to cope.She told Marie Claire magazine: "I would be up all night because my second baby didn't sleep, and he had a lot of ear infections. Then I'd wake up in the morning and do my workout, which I always felt I had to do, and then meetings for my three clothing lines, and then hang out with my kids, take them to preschool - da, da, da."At four o'clock, I'd be like, 'All right, I'm out of here. I'm going to go to the studio and try to write a record.' I'd sit on the couch [with my band mates] and be like, 'Let's do this now, because I'm missing time with the kids. I could be having dinner with them and putting them to bed.' It was really hard."The 43-year-old star is known for her toned abs and trim figure, but Gwen confessed she has since sacrificed going to the gym for the sake of maintaining a balanced lifestyle. The blonde bombshell was addicted to working out five times a week until she realised cutting down on exercise was something she "had to do".She admitted: "This past year, I kind of stopped working out. I think my body just needed a break. And so I did that and focused more on feeling good as opposed to beating myself up."However, Gwen revealed her "miracle" ten-year marriage to rocker Gavin is stronger than ever as a result of everything, describing it as her "biggest accomplishment" to date.