I've been bullied and it took me a while for me to get it in my head "The only thing that matters is what I truely think of myself."
Anyway, I was bullied from about 3rd grade all the way through the middle of 8th grade. Middle school was the worse, elementary school was just me being excluded from silly playground games so I'll focus on 6th-8th grade bullying and it all built up until I had enough in 8th grade.
So starting in 6th up until 8th grade middle of January I went through it, luckily the school I went to the counselors and teachers and staff were all very supportive and did their best to issue detentions and temp suspensions but still something in me just snapped. At the end of the year long story short the horse I had been leasing for 4 years, my first full lease/eventer/companion and responsibility died of sever colic and the next day at school Mason started at me with all his derogatory horse remarks belittling me, telling people I had sex with farm animals and everything else I did that had to do with horses just hit me hard and I slammed him against a wall and twisted his shirt collar before he had finished his sentence. I growled/screamed/cried at him "My f*cking horse just died!" and punched him in the gut. The school requested my parents remove me for the remaining 2 months of school and my teachers agreed to after school tutoring to finish up. In order for the school to graduate me from the 8th grade I was required daily therapy for the remaining two months and an addition 3 after which I gladly did as long as I didn't have to go back to campus.
Now, looking back that was the wrong way for me to go and take things and I would have made it through without those actions and I accepted the consequences. If I had the mindset I do now, laughing it all off and come back with a pretty icky question on "and where did you learn all this stuff about horse sex?" and try to turn the tables with a snappy come back would have been great but at 14 it just wasn't possible for me to put myself in that kind of position at the time.
My parents and the school did what they could but kids parents didn't step in or were unable to for some reason and it just escalated.
Bullying is always going to be around which absolutely sucks. It should but won't always be looked into and/or taken seriously which is awful and right now I think the best thing a kid could have is support. It just sucks and I could through a bunch of pretty language around about it but I won't.