I had my children in my twenties, so only wortked for five years after graduation, then, as was the norm in these days , was a full time Mum, then was mostly part-time/sometimes full time worker until my late thirties.
I retrained in my forties and was very energetic and career focussed in my forties, fifties and sixties, which I think are the years when woman can do their best work, having brought up their children in their twenties and thirties..
I became self-employed in my late fifties and intended to retire at 75 but I ended up retiring at 73, just because I realised that I was slowing down and no longer had the energy I had had ten years earlier.