1. It is midnight.

2. He can’t sleep because he is thinking about future.

3. He doesn’t want to be a doctor because he will have to study for a long time and he won’t have fun.

4. He doesn’t want to be a pilot because he hates flying.

5. Because for being a rock star you don’t have to be very clever, so it’s perfect job for him.

6. He is going to bed because he is tired.