1. -I am very shy.
-It would be a good idea to join a sports club.
2. -I put on weight. -I think you should go on a vegetable diet then.
3. -I'm stressed about exams. -It would be nice to do some exercise, if you have problems.
4. -I'm tired in the morning. -It is because you going to bed very late. You should go to bed earlier next time.