Bronnie Ware worked in palliative care. Her patients were those who had gone home to die, so she spent with them the last 3-12 weeks of their lives.
When questioned about any regrets they had or what they'd do differently, common themes surfaced. In the top 5 "I wish I’d had the courage to live a life true to myself, not the life others expected of me" tops the list (read the article for the full lot).
Stuff to think about: Why can't we let go & smile again, long before we are dying?