They say youth is wasted on the young and as I get older, I am starting to agree. Having just turned 40, I often find myself thinking back to my younger self and how much time and energy I wasted on things that were out of my control. There's so much I wish I could tell the 30-year-old me who was so worried about life and how it wasn't going the way I'd planned.

READ MORE: 'Four months of hell': Huge challenge new mum didn't see coming There is so much stigma attached to the age of 30 – a milestone when many women predominantly feel they should be ahead in their career, married or at least in a steady relationship, with children either on the way or on the horizon. I had none of that. At 30, I was newly single, had no prospects and was working in a junior role on a job I liked, but didn't love, while all my friends were getting promoted, engaged and pregnant.

But jump to 10 years later and I've never been happier. OLYMPIC SCHEDULE: Your day-to-day guide to all the action in Paris, in AEST times I'm engaged to my partner with two beautiful children and the boss of my own business, which I created after a string of constant career pivots. But that's not the point of this story – the point is that a lot of my youth was wasted worrying I'd end up single and childless instead of living in the moment, enjoying my freedom and taking advantage of a life that for the most part didn't have any obligations.

I wish I could tell that girl not to worry, that life will work itself out, .