The 26-year-old, who is currently entertaining us all in the jungle, explained she was picked on when she was younger, but has learnt not to let her bullies get to her.
Quoted by The Mirror, Scarlett said: "Being bullied made me realise that people will like you or not like you anyway. You might as well be yourself and say exactly when you think."
Reflecting on her early experiences at school, Scarlett said: "I think it was the monobrow and teeth that could chew an apple through a letterbox. I was really ugly, I was really weird and I believed in aliens. Even as a kid when I was 11 or 12, I wasn't like the other kids in the school - I still wore my hair in pigtails. No wonder I got picked on."
The reality star (famed for being on Channel 4's Gogglebox) admitted that she had an easier time at secondary school, after finding her own confidence.
She joked: "Puberty hit over the six weeks holiday, all of a sudden I got boobs, my mum let me wax my eyebrows and I went and got my hair done. I just had this new found confidence."
It's not the first time Scarlett has spoken about being on the end of negative comments.
Back in May, Scarlett revealed that comments she had received from online trolls left her mum in tears.
In an interview with the The Belfast Telegraph, she said: "People are brutal. They forget that people on telly are actually real people. It upsets my mum and dad. I'm quite a strong character, but it breaks my heart for them."
"My mum's cried at stuff she's read about me," she revealed. "I end up putting on a brave face because I don't want her to be upset."
Still, Scarlett is having the last laugh and is currently one of this year's favourites on I'm A Celeb thanks to her witty one liners. Following Sunday night's launch of I'm A Celebrity's new series, Scarlett has been tipped favourite to win, with Joel Dommett, Adam Thomas and Larry Lamb following behind her.
Scarlett found herself getting stuck in straight away this series, as she was one of the first celebrities to take part in a bushtucker trial. Scarlett joined Jordan Banjo, Ola Jordan and Sam Quek in the Tomb of Torment.
The foursome had to endure ten minutes lying in a tomb with 120,000 critters for company, but they successfully won themselves ten meals for camp.
Scarlett will face the next trial too, along with Carol Vorderman, where she will have to eat a slew of jungle delicacies in the Big Bush Bake Off.
I'm A Celebrity continues Wednesday 16 November on ITV.
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