Intertemporal decision making is really challenging. Future outcomes are undervalued relative to immediate ones. Further, we look to the future with rose-colored glasses that let us see a possible, yet unlikely future that we half-heartedly commit to today, without considering the reality that circumstances and motivations evolve over time and will influence future events from ever happening.
See the book,"The Economics of Self-Destructive Choices": https://www.amazon.com/Economics-Self-Destructive-Advances-J...
Research keywords: "intertemporal discounting"