There are four tried and true mindfulness practices that work as a hedge against loss aversion and an overreactive amygdala. The first is meditation. While the traditional practice of meditation is very difficult to learn and master, a whole new collection of apps has come out in the last few years to make it easy. I've been using the app from centerpointe.com now for close to 10 years. I took a break from meditating last summer and I think my drama with the leg infection took greater hold than it might have. Meditation works great also with a journaling practice. I developed my own software to document my insights, questions, challenges and intentions and share them with my partner and my coach, but a really nice journal and a fountain pen are a great way to start logging what you are grateful for. On the physical side, regular stretching (yoga, in the gym or in physiotherapy) forces a flexibility of thinking to go along with a flexibility of body. And lastly, I'd include cardio (biking, swimming, running) as a mindfulness practice as the metronomic pace acts as a kind of consistent rhythm or beat to track you heart and soul against.