Bear Grylls says he's confident he can motivate others with the lessons he's learned - despite having some out-of-the-ordinary experiences.
The adventurer had a career in the Army's Special Forces before going on to make TV series like Born Survivor.
"I think what I've learnt about tackling and approaching life's problems and set-backs could help motivate anyone," Bear, who shares his experiences in new book A Survival Guide For Life, said.
He admitted: "I often feel I've let myself down and hold my head in my hands and think, 'God, why did I do that?', but that's sometimes the penalty of not living a safe life.
"But mistakes help you grow and I learn from them and endeavour not to repeat them."
He added: "I believe that the ultimate success in the game of life can never come from money amassed, power or status attained, or fame."
:: A Survival Guide For Life by Bear Grylls is published by Bantam Press, priced £18.99. Available now.