An Antidote to Dissatisfaction - YouTube
The easiest gratitude exercise with the most solid research behind it is gratitude journaling. It involves sitting down for a few minutes, 1-3 times a week, and writing down 5 to 10things you are grateful for.
Participants in studies on gratitude journaling reported more happiness and higher general life satisfaction after doing this practice for a few weeks. Practicing gratitude may be a real way to reprogram yourself.