Immediate rewards shown to be the strongest predictor of persistence and adherence when in pursuit of long term goal-related activities.

Overall, whereas delayed rewards may motivate goal setting and the intentions to pursue long-term goals, a meta-analysis of our studies finds that immediate rewards (eg. enjoyment) are more strongly associated with actual persistence in a long-term goal.
Full article 🛍️ https://journals.sagepub.com/doi/full/10.1177/0146167216676480