All your friends and relatives can tell you what is stressing you. We professionals are particularly guilty of telling you what to do and how to do it. Everyone is full of good advice and solutions to your problems. The solutions may range from putting the injured person in an institutional setting to developing some backbone and shouldering responsibility the way you should. Don't allow others to identify your stress for you.
Stress is cumulative and it is very personal.
What might be stressful to one individual is not stressful to another. What is stressful to you at one point in time may not be stressful at another point. Only you can determine what is stressful to you. And you can only do that by experience. Spend time each day analyzing what has stressed you in the past 24 hours.