The average woman has five major regrets in life it emerged yesterday - including everything from not trying hard enough at school to picking the wrong partner.
Experts who carried out a detailed study of women also found a large percentage lament a failure to lose weight as a major regret in their lives.
Regrets over an inability to get a foot on the property ladder earlier, or at all, also featured highly on the list of women's top regrets, as did not being as impulsive as one would have liked.
Opting for a career path that turned out to be the wrong one was a common gripe as was not travelling the world before starting out in the world of work.
While six out of ten women would happily 'do things differently' if they had their time again, three out of four women believe their regrets have been character building.
Yesterday a spokesperson for Diet Coke, which commissioned the report to coincide with the launch of its new 'Regret Nothing' campaign said: "The research findings suggest women are harbouring their regrets and not living life in the now. Through our new campaign, we want to inspire women to act on their impulses to create positive experiences, adventures and opportunities for success."
Researchers who carried out the study among 1,000 women between the ages of 25 - 39 found family matters cause a significant amount of regret when looked back upon.
A self-critical one in five said it played on their mind they 'could have been a better daughter', while more than one in ten said they felt they could have put more effort into being 'a better mother'.
More than one in ten women said they wished they had children, while around 7 per cent said they felt they had children 'too early'.
Others expressed sadness they were unable to afford their 'dream wedding'.
'Not being spontaneous enough' also made the list along with 'spending the night with someone I shouldn't have', and 'texting someone I shouldn't have after a night out'
Focussing too much on a career and not being a good enough friend to someone close also emerged as subjects which sparks misgivings when looking back.
As the original impulsive soft drink with no calories and no sugar, there is nothing to regret when you choose Diet Coke.
Top 20 regrets for women:
Not trying hard enough at school
Not losing weight on a diet
Choosing the wrong career path
Not getting on the property ladder
Spending a night with someone I shouldn't
Not being spontaneous enough
Not being a good enough friend
Not being a better daughter
Not being impulsive enoughNot travelling before starting a family
Not having children
Not being a better mum
Texting someone I shouldn't after a night out
Not having my dream wedding
Having an affair
Getting married / settling down
Focussing too much on my career