I find the key to avoiding stress is to be prepared. By being prepared, we reduce the need for panic and stress.
Having contingencies in place means that we’re expecting something to fail, but if all preparation work has been done, there would be no need for us to fail or a plan B. It’s important to think and work through how we can prevent things going wrong, before they happen. Always rely on yourself to make your own judgments on decisions you have to make. That way you stay in control.
Don’t worry over a situation you have no control over, if you cannot change the outcome. There is no point, as for a situation you know you need to change, work through that so it doesn’t become a worry, or a stress factor.