I'm almost ready
A girl saying 'I'm almost ready' is like saying she just began. Don’t interrupt her, she’s not even half done yet.
'I'm almost ready', she's still in her pajamas and you’re already at the party.
'I'm almost ready', she just put on her first shoe and you’re already checking your phone.
'I'm almost ready', she’s just started her makeup and you're already asking for a picture.