The Sax singer exclusively told The Sun it was the only thing that could help her deal with some of the brutal challenges she faced during her stint in the jungle.
In an exclusive interview with The Sun, 31-year-old Fleur said: "If you can laugh through the pain it will make things a lot easier.
"The minute you break a smile it lightens the mood."
And her positive attitude also helped her deal with the emotional and physical challenges of jungle life.
Fleur added: "I always look for the silver lining.
"If there is a bad situation…find the good in it."
Getting philosophical, she added: "I always say there is no regrets in life.
"Everything is a lesson."
And the I'm A Celeb star said she found comfort in the support of her family when the going got tough.
Predict Sunday's winner and be in with a chance to win daily Amazon vouchers and a holiday worth £5K
The X Factor runner-up explained: "Always have family time – it keeps you grounded.
"It reminds you where you started and also gives you motivation."
Fleur narrowly missed out on reaching tonight's final after being given the boot last night.
Her fellow campmates flocked to hug her after Holly Willoughby, 37, and Declan Donnelly, 43, announced the singer had been axed.
And after walking across the bridge, Fleur tipped her pal Harry to win, saying: "It's got to me my dad Hazza."
She also insisted she's looking forward to eating some "dirty food."
The singer laughed: "My gosh, food. We were talking about food all day every imaging all the dirty things we were going to eat. [I am going to have] a dirty pizza and a dirty burrito."
There are now only three celebrities left in the jungle to battle it out.
Harry Redknapp, 71, Emily Atack, 28, and John Barrowman, 51, will all be vying to be crowned winner in tonight's final.
- Listen to new podcast Jungle VIP, talkRADIO's cheeky, no-holds-barred take on the action Down Under. Hosted by Jamie East with daily guests, including former campmates and celeb reality TV fans the gang will dish the dirt on the REAL behind-the-scenes gossip. Read more here.
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