(i hear the uk has a lot of school stabbings)

It is a lot in a sense that every number above zero is a lot, but really numbers aren't even comparable.
Overall, in UK from 2012 to 2022 there was reported 36k cases of violence in school. Meanwhile, in US 443,990 teenagers fell victim to school violence in 2022 alone

https://www.met.police.uk/cy-GB/foi-ai/metropolitan-police/d/september-2022/knife-crime-offences-schools-august2012-august2022

https://www.brightpathbh.com/school-violence-and-teen-mental-health-statistics/