Positive psychology is the science of happiness. 
The study explores activities that can improve your baseline happiness. Once you  have identified what makes you happy you can use these techniques to buffer the stresses in your life.

Happiness

Berkeley University offer a free  8 week online course in the science of happiness. modules include mindfulness, compassion, gratitude, kindness and forgiveness

Gratitude

Gratitude is one of the components of happiness. As a group of highly motivated people it can be easy to focus on your next goal and in doing so forget to appreciate all that you have.

Character strengths

Character strengths are the positive parts of your personality that impact how you feel and behave. when applied effectively they can be incorporated into your everyday activities to buffer against stresses.