None are so old as those who have outlived enthusiasm.
(Henry David Thoreau)
You might as well ask why she was struggling. After all, she raised two daughters who made a career for themselves in the US. She also lived in the well-off part of Delhi and, though late in life, managed to travel to all the places she always aspired to go to. Apparently, it was a case of broken dreams! Deep down inside she knew she should have gone to Radcliffe. Deep down inside she knew that she should have kept her job as a psychologist. She blamed her mum for not allowing her to go to the US. She blamed her husband for discouraging her when she needed a little encouragement to switch jobs. She never would never have admitted this to herself, but deep down inside she even blamed her two daughters for not allowing herself to have a life on her own.
Failure is ok, and success is a lot better. No matter what you do, go after your dreams. No matter what may have happened in the past, It is never to late to start over. Even later in life, had it not been for the blame game and the sadness over all the missed opportunities, my mother-in-law could have had so much fun and meaning with her poetry instead. GOD always opens a door to go after our dreams. Open yours here and now and dive enthusiastically in!