There is a Biblical saying "Guard your heart". Now many folks think that means to never fall in love. They are wrong. In Biblical times your heart was also a reference to the thoughts in your mind. To guard one's heart meant to avoid negative input. Avoid negative TV shows. Avoid negative movies. Avoid negative music. Avoid negative people (I know - that may mean losing 30% of your contacts on your phone. LOL). Most importantly, focus on what is good and what is right and let that be predominant in your thoughts.
Here is a focus for today: