The actress - who plays teen tearaway Lauren Branning - joined the show two years ago. She told the Daily Star that she will continue with the role for as long as she is wanted.
"I'm having a great time," she said. "I've just signed a one-year contract and am happy to stay for as long as they'll have me.
"I get so excited when I open my scripts. So as long as that continues, then I'm happy. I really do love it."
The 19-year-old also addressed rumours that she is planning to move in with her boyfriend and EastEnders co-star Tony Discipline, who plays Tyler Moon.
"When people ask me about marriage or even moving in with Tony I have to laugh," she said. "It's just so ridiculous. I am 19 years old and am enjoying myself.
"Hetti [Bywater] (Lucy Beale) and I are currently neighbours and I can definitely see myself living with her. I mean, imagine it - Lauren and Lucy actually living together."
When asked about Lauren's developing relationship with her cousin Joey, Jossa said that she sympathises somewhat with her character's situation.
"Obviously I can't relate to liking my cousin. But the thing that I'm holding on to is that they haven't been brought up together as cousins," she explained.
"They've really only just met... so I kind of feel that it's not that weird that they're cousins - and it can be justified.
"He's good-looking as well and as we all know, Lauren's a bit of a weirdo. She loves it really, she's like 'This could really p*ss off my dad'."
She added: "It's not her biggest motivation, though, as she really does fall for Joey."
Viewers will see Joey and Lauren's relationship deepen over the coming months, with explosive consequences. Jossa's co-star David Witts recently described the upcoming scenes between the pair as "absolutely humongous" and said they were "just what [his character] needed".