The correct answer would be to write down his goals and complete them one by one.
When faced with many tasks and you are feeling overwhelmed the best way to deal with them is to write them down, organize them and prioritize and then develop a strategy to achieve each task by writing down milestones and goals and then tackle each one at a time. The more you worry and stress and procrastinate the worse you will make things for yourself so instead set up goals and stick to them.