Gratitude
Practice gratitude every day. It will help you focus on the good things in life, help you replace negative thoughts and find peace.
It helps to journal. Keeping a list of things you are grateful for and spending some time saying
why you are grateful for that person, experience or thing. This helps to build a positive attitude.
Little living helps you do this every day. It forces you to keep things simple, only keep what is important and to get by with what is really necessary.