Stress has a direct impact on how my digestive system behaves.
When I was employed in a high stress job, the company provided stress management workshops that discussed deep breathing and visualization therapy.
I used soothing music to get to sleep most nights.
My son who is a high school teacher has used meditation. I understand yoga can be helpful.
You cannot control the actions of "stressors" but you can work on controlling your reaction to them.
Good luck.......