When Sophie Walker graduated and became a teacher 10 years ago, she felt excited for the future.
But this week the science teacher walked out on strike with 50 colleagues at her Ipswich school in protest at pupil behaviour.
Teachers at Westbourne Academy are having chairs and scissors thrown at them, and many are struggling with their mental health, Ms Walker says.
Some students are refusing to attend lessons and are disrupting other classes, and even exams, she adds.
"They go and collect other students from classes and roam around in large groups. They come in with no intention of attending any lessons."
Ms Walker, a representative for the National Education Union (NEU), admits it has made her consider quitting both the school, and teaching altogether.
"I'm only still here because of the students who want to learn. They deserve an education," she says.
Another teacher, who asked to remain anonymous, says she resigned from the school, which has just over 1,000 pupils, after being pushed by students and sworn at more times than she can remember.
The trust that runs the school acknowledges there is a "small but significant minority whose behaviour does not yet meet our high expectations" and says it is "actively addressing" this.