I'm frustrated that my mom smokes
Why are you frustrated that your mom smokes?
The number of cigarettes was becoming too much
Smoking is terrible for your health, so it makes sense that you feel frustrated about this. You should talk with your mom about her smoking and how frustrated you are.
I hope she listens.
If she doesn't listen then unfortunately there isn't much you can do. Smoking is a habit that a person has to choose to end themselves. All you can do is bring up your concerns.