Asking mean people to not be mean

and getting help from within a system that enables mean people

usually does not work.

But asking politely for it to stop and for help is a very important psychological step, this is so you can tell yourself you went through all the right steps, you tried and you are not to blame for the abuse.

Next step is getting outside help and planning to leave, leave to another job in your own time. You don’t get a medal for having no income.