The actress has portrayed her flirty soap character since 2006 and viewers are currently seeing Mercedes prepare to marry budding footballer Riley Costello, played by Rob Norbury.
"Every day is amazing. Everyone is so close and every day is a buzz," Metcalfe told Heatworld of life at Hollyoaks. "The cast and crew are brilliant - it's like working with your best mates.
"I never get bored or lose interest, so I would stay until who knows when! The stuff they cough up is just brilliant."
She continued: "There's a lot of people in soaps who get comfortable and want to risk such a good job for Hollywood or music. I hate musicals - that's a no go.
"You have to appreciate what you are doing now - I've no big dreams, but I'm sure I'll continue to develop."
Mercedes will be one of the characters taking centre stage in late-night spinoff Hollyoaks Later next month as she celebrates her hen party in Ibiza.
Read all the news and gossip about this year's Hollyoaks Later:-
> Channel 4 commissions fourth Hollyoaks Later
> Hollyoaks stars film special Ibiza scenes
> Hollyoaks return for Michaela McQueen
> Kimberley Walsh excited for sister's Hollyoaks role
> Hollyoaks' Theresa to become embroiled in Silas plot? - Leaked video
> Hollyoaks' Mitzeee to face danger in stunt scene
> Hollyoaks Later promotional shot released - First Look