Once a day, before bed, organize your day.

What was your worst day today? Pour out all the negative emotions with an honest heart.
What was good about your day today? Write down your “feeling” briefly and forcefully, such as things that make you happy, things that move you, things that you wish for, goals, etc.
What are your goals for tomorrow? After summarizing the key points on which you should focus your energy, write specific actions.