At the end of each day and each week, rake a moment to reflect upon what went well and what can be improved.
How can you experience more of what went well? What preparation led to that outcome? Remember to focus on your actions leading up to the results, as that is what you can control, not the results themselves.
How can you decrease the amount of bad experiences you encounter throughout the day/week/month? Where are you encountering friction? When do you feel stressed? Can you put processes in place to eliminate, or at least to minimize, these feelings?
Work to solve the root cause of the issue(s), not the symptoms.