I started an embroidery piece when I was 10 years old while recovering from a serious childhood illness. Nice piece but I was too sickly to force myself to finish. Then along came the teen years, college, motherhood, single parenting, new jobs, and a home to distract me from finishing the piece.
I rediscover the piece every few years and think about finishing it. (I would finely make my mother proud. She picked it out.) I always have something else more interesting to do, like quilting.
Now, down to the real answer, it is nearly 52 years since I started it.