I’M sorry to hear that you having problems in class with peeer pressure.
I would like to offer you advice that would help you with peer pressure.
1.Do not ditch school, because it’s not positive for your grades.
2.Study for test ,instead of ditching school with the people who wants to be cool
3.Keep lungs clean, without any smoking
4.Do not give into peer pressure
5.Think about your future ,before acting in ditching school.