I saw this on a wall in Melbourne, and it reminded me of a conversation with a friend who was feeling particularly lost after her marriage ended and most of her kids were now adults. She said 'The thing is, I don't know what I like' and later elaborated 'I don't have any hobbies'. The Tabitha Carvan book I mention here also talks about this. Women in particular push aside their interests, especially once kids come into the picture. They put everyone else in the family first. Trying to meet everyone's needs leaves little time for their own.
And then you arrive at a point with extra time and you suddenly realise you don't know what your burning passions ever were.
So start to nuture them. Or experiment with something new. Find what brings you joy, or sparks your brain. Do that thing you've put off as silly or unrealistic.
If there's one thing we learnt from Grandma Moses, it's never too late. After arthritis made embroidery difficult, she started to paint at the age of 76. With her success, her reputation grew. By her late 80's she was being honoured as Woman of the Year and Mademoiselle magazine even listed her as 'Young Woman of the Year' at 88! Age is not a barrier, only lack of interest. So find out what you love and follow those passions.
She sums up life in her autobiography, My Life's History, that she published at 92 "I look back on my life like a good day's work, it was done and I feel satisfied with it. I was happy and contented, I knew nothing better and made the best out of what life offered. And life is what we make it, always has been, always will be."