This is like asking how does one stay healthy. A BIG question with no one answer. Some answers include:
Know that you co-create the circumstances of your life. Blaming others will not help you.
Come from a place of integrity.
Know it’s not all about you.
Don’t bully yourself.
Work with others to find solutions.
Be willing sometimes to compromise.
Play up the positive and downplay the negative.
Gain control over your thoughts.
Know there is always another way you can look at it.
Read my book: Growing Into Soul, The Next Step in Human Evolution! 🙂