If you believe that feeling bad or worrying long enough will change a past or future event, then you are residing on another planet with a different reality system.
So here is one of my theories on happiness: we cannot know if we have lived a truly happy life until the very end. This view of life and death was reinforced by my close witnessing of the buildup to the death of Philip Gould. Philip was without doubt my closest friend in politics. When he died, I fe