Take a gentle attitude for the time being, and if you can solve it with money, keep your personal safety for the time being. If possible, take some remedial measures, such as recording on mobile phones, and remember each other's facial features. Be familiar with their modus operandi; More importantly, after the incident, you can communicate with your parents or teachers in time and report anonymously.
Communicate specific and effective strategies with the school or education bureau, and never "gang up" to carry out the so-called violence with violence; Another key point is that you need to practice some self-defense techniques that suit you to prevent extreme danger!