Happy families are all alike; every unhappy family is unhappy in its own way. is the first line of Anna Karenina
Sometimes a lot depends on the audience - who is going to go on about their stroppy teenager or their miserable husband to someone who never lets their own guard down?
I find that I am far more likely to have a 'natural' conversation where I might mention things like that with people who do likewise - it's a two-way street. good friends will share in your triumphs as well as your disasters (and those of your family).
'Perfect Patty' types rarely have close friends, in my experience, as nobody wants to trade boasts for moans. I once went to a social group where the conversation was all about children and grandchildren, and if one person 'casually' mentioned their grandson's physics degree someone else would 'drop' their granddaughter's MSc in Astrophysics into the reply. It was grim, but quite amusing (particularly as it was clear to me that most of them didn't have a clue about how universities and degrees actually work), but it meant that we didn't ever talk about things that mattered, and the conversation became a contest for those who joined in.
As soon as the group's business was done, a few of us went on for coffee and talked frankly about our lives and families, with humour and empathy. We all felt so much better after that.