1.I'm worried about my looks. I want to become more handsome. What should I do?

- Why don't you have cosmetic surgery?

2. I'm worried about my height. I am short. I want to become taller. What should I do?
- Why don't you jump rope every day?

3. I'm worried about my weight. I'm too heavy. What should I do?
- Why don't you go on a diet?

4. I'm worried about my grandfather. He is in the hospital. He is very sick.
What should I do?

- Why don't you visit him and take care of him?

5. I'm worried about my health. I sometimes feel uncomfortable. What should I do?
- Why don't you exercise regularly?

2 answers

Would you check the short dialogues? Are they okay?
These are just fine! I would not make any corrections.