What with giving birth to two children within 13 months, moving house, and of course - finding her best friend banging her fiancé - she’s had quite a bit to deal with.
But the 37-year-old has always refused to feel sorry for herself - bar the occasional angry outburst on social media.
And this week, Katie has revealed the secret to her newfound happiness is all about getting some perspective.
Posting an inspirational quote to Instagram, Katie shared the message: ‘One of the happiest moments in life is when you find the courage to let go of what you can’t change.’
‘So true’ Katie captioned the snap, before the mantra: ‘onwards and upwards.’
KP has been in rehearsals this week for her Christmas pants, sharing some rather dramatic images of her costume on her Instagram page.
The former glamour model will be putting on horns to play the Wicked Fairy in Sleeping Beauty this December - and you can catch her at the New Victoria Theatre in Woking.