Focus on feelings of self-esteem and accomplishment

For athletes, it’s not just physical well-being that is motivating them to exercise so intensely. Instead, it’s a sense of personal accomplishment and increased feelings of self-esteem.

Instructions

Keep in mind the activity that you want to do regularly.
It can be a physical activity, like running, or a mental one, like playing chess.
What part of this activity gives you a feeling of personal accomplishment?
Is it running faster? Is it winning against harder opponents? Is it a deeper understanding of the game?
Focus on the feeling of self-esteem.
This feeling is your reward. Engaging with this feeling will ensure that you will repeat the activity over and over again.