United Kingdom, May 19 -- Lulu needed therapy while writing her memoir.

The 76-year-old singer is set to release 'If Only You Knew' in September and after spending decades keeping her struggles private, she has opened up about the challenges she faced in the book, but admitted it was "intense" having to look back so she sought some help with dealing with the feelings that surfaced as a result.

Speaking at the start of her first sponsored walk for her new Lulu's Mental Health Trust foundation in London, she exclusively told BANG Showbiz: "I'm 76, who knows how long I'll last, I'm on the way out. I could relate to some of the difficulties in my life, some of the issues, in this book. As well as the amazing life I've had.

"But when you're...