Lots of people focus on how they end the day to improve sleep. I have had a lot of success changing the way I start my day.
When you wake up go through mental list of all the things and people that you are grateful for in your
Life and why, Smile. Then go through the list of what you get to do that day( Example, I get to present at a monthly safety meeting for our operators and mechanics, write a weekly newsletter, and evaluate daily performance metrics today, maybe get to a drilling location and walk down a rig. After work I get to train deadlifts and bench, I am strong and healthy for my age and have the time and space to pursue goals I enjoy. )Smile lucky ! Our lives are great!
I then do my biometrics(HRV and weight) and get ready for work.
Do this for 80 days straight. It will reprogram your brain and you will have less to keep you up at night because your responses during the day will change.