Lola has caused a stir in Walford since arriving in the area last month, but her wild antics have disastrous consequences in tonight's episode of the soap when she accidentally leaves young mechanic Jay Mitchell injured as she causes destruction at The Arches.
However, speaking on Daybreak this morning, Harold admitted that Lola is unlikely to learn lessons by toning down her behaviour in the foreseeable future.
Asked whether the troubled teenager will calm down, she replied: "I don't think so! I think she's still really feisty. And she's got lots of attitude, so I don't think she's going to lose that anytime soon."
"It's just been so fun to play someone who's so different from me and who has got attitude," she added.
"I was terrified, it's just amazing," she explained. "I'm not used to it at all yet. I've watched EastEnders since I can remember, so I'm a big fan."
The actress added: "It was my first audition that I'd ever had, so I was really nervous and I was thinking, 'I'm never going to get it - I'm just going to have fun while I'm there'. I was just shocked to even get the casting for it, so I was over the moon when I actually got the part."
EastEnders bosses announced Harold's casting in June.
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Watch Danielle Harold's recent behind-the-scenes EastEnders chat in the video below: