But despite living the dream of flying around the world with Louis and One Direction, working as the X Factor stars' make-up artist, her life was soon touched by tragedy.
By the time she was 20, Lottie had lost both her mother and sister, and was struggling to cope.
Now she wants to use her story as a way to help others who are struggling to cope with grief.
She said: "If people are going through a dark time, I want them to see that you can overcome that.
"In my darkest times, I didn't think I'd be happy again.
"And there'll be a lot of people in that same place."
Lottie and Louis' mum, Johannah Deakin, died from leukaemia in 2016, aged 43, seven months after she was diagnosed. Loaded with grief, Lottie gave up her career to care for her five siblings - Felicite, then 16, twins Phoebe and Daisy, 12, and twins Doris and Ernie, two - along with her grandmother and the younger twins' father, Dan.
Describing the move back home to Doncaster, South Yorks, she says she had no regret: "I needed to be there for the little ones.
"It was just an instinct. And we've all got that in us because of how my mum brought us up. We're all very maternal and we all care about each other so much.
"My work was important to me but nothing's more important than your family and they needed me."
But while she put on a brave face, Lottie struggled behind the scenes.
"I thought that my life was never, ever going to be happy again," she recalls. "I thought that I would always live with this pain."
Just three weeks before Johannah died, Lottie remembers suffering one of her lowest moods.
She says: "We'd held on to a lot of hope so to find out that she wasn't going to make it was just unbearable. I remember sitting on the bathroom floor sobbing.
Esta historia es de la edición August 05, 2024 de Daily Mirror UK.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.
Ya eres suscriptor ? Conectar
Esta historia es de la edición August 05, 2024 de Daily Mirror UK.
Comience su prueba gratuita de Magzter GOLD de 7 días para acceder a miles de historias premium seleccionadas y a más de 9,000 revistas y periódicos.
Ya eres suscriptor? Conectar
SMITH'S A TENSATION
Jones hails the near-perfect England fly-half... but Marcus says he's still learning every time he plays
KEEP FAITH WITH POPE
Baz backs stand-in keeper Ollie to succeed at No.3
Was Brit double killer the Butcher of Mons?
Belgian crime expert calls for probe into monster Sweeney
Paddy given a factory reset
BBC hit back for Xmas special with new host
Maid 'murdered by Brit was about to fly home
Killed in Hong Kong a day before trip back
TRUMP ELECTION RAP IS DROPPED
Case over 2020 defeat set to be thrown out
Cher.. and Cher alike
Star was in her 30s before she found out her real name
Tragic Liam fell 'trying to flee from hotel room'
Staff 'knew he threatened to escape'
Craig.... the softie
Strictly judge had to tone down his cruel barbs or be cancelled
Danny's had me in tears
McFly star's sister proud he opened up over his anxiety