First, learn how to see things objectively. Learn how to see us the facts, without the interpretation. Be clear about external thigs that are outside your control, and internal thoughts, feelings, beliefs and thinking. Which are yours to control. Learn this difference well.
“We cannot choose our external circumstances but we can always choose how we respond to them.” ~ Epictetus
Teach yourself that nothing has meaning. The only meaning things have is the one we place on it, and this is in your control.
Learn that to ask whether what’s happening now, today, might be exactly what should be happening. It’s part if your adenture. This is gratitude.
Then, teach yourself to chose only empowering interpretations. This is a discipline, and a skill that is only learned by repetition and practice. [Habit. Deliberate practice]
Repeat it daily. Hourly. Take an event that involves emotion. Strip the meaning and emotion. Observe only the event. Practice placing an empowering interpretation into the event. Always chose to believe that what you do makes a difference.
“Progress is not achieved by luck or accident, but by working on yourself daily.” ~ Epictetus