I was bullied a little in US grammar school (Kindergarten through thru 8th grade, the system when I was a student). This one bully was taking lunch money from other students, threatening them with a beating if they didn't agree. And when he tried it with me a couple of times I finally punched the kid out, in 7th grade I think, and it ended. I've always been small in stature, but push me too far and I become fierce.
When I entered a public high school in my Junior (3rd) year, having rebelled against my parents and deliberately flunked out of a couple of private boys prep schools, I faced the problem of being the new kid in class. Lots of rejection, lots of hostility from other students, little acceptance, unfamiliar with the public school system, making me a prime target for bullies.
One day in the cafeteria a known bully, who'd ragged me before, started messing with my cup of ice cream dessert, sticking his straw into it and taunting me.
"Here, you wanna play with my ice cream?" I asked him. And with that I shoved it right into his face, to great applause from the other students.
He challenged me to a fist fight, which I readily accepted, and I invited him to step outside with me. The other students were jammed against the ground floor windows of the cafeteria to watch us on the lawn, and we exchanged a few punches before the teachers appeared, and hauled us both off to the Principal's office.
He threatened us with expulsion and every kind of punishment. I calmly replied that I had been bullied & threatened, was merely protecting myself, and if I were punished over it, my family attorneys would make him a pauper, and see that the school board fired him. Mind you, this was in 1965, when teens never dared talk back to adults in authority.
He acted all outraged, but in the end nothing came of it, and I received no punishment other than a warning. I don't know what the other boy received, but I was never bullied in that school again. Indeed, the bully himself tried to become friends with me, but being associated with a bully held no interest for me.
Bullying is a real problem, and the response of many US schools continues to be totally inadequate. I never felt like killing myself over it, because I'm not prone to being a victim. But I know it's the bane of existence for many students, and I blame the adult educators who allow it to continue.