How is this sustainable.....

high school students can be so mean... do they not realise or care that we are human too. a student made some accusations about me lying about who marks my assessments.... and that I don't hand them back to students on time, that I constantly lie about things. It all seems so silly typing it out as I know everything she has said is false. The school will be dealing with it tomorrow. I have already raised the issue. it is helping to share as I don't have many friends. I work so hard for my classes and put so much work into things and it makes me just want to give up. I don't live to be treated like im nothing. Corpate seems like a good job to go back too...
any tips on building a thick skin or do I just leave now.

I am like shaking writing this.