Here are the rewritten sentences based on your instructions:

1. Lucy enjoys painting in her free time.

2. He doesn't like junk food and doesn't exercise.

3. I wash my face and brush my teeth.

4. They like drinking tea after meals.

5. My sister plays with me every evening.

6. Her cousin learns English while her other cousin learns Japanese.

7. We didn't like watching football.

8. You shouldn't sit too close to the TV screen.