What are you bad habits and what's the one you want to rid of most? How you you do?

1)What are you bad habits and what's the one you want to rid of most?

=>in class I am a good and good student, but not for that I don't have any bad habits, my bad habit is to take my phone to play games and poke fun at classmates during class time. When my classmates took out papers and elastic bands to shoot my friends, sometimes she got punished, but every time she punished, I still laughed making her mad. I have to try to control my anger and pay more attention to her lecture