I think I have significant experience in this regard. Please keep in mind that it may be specific to my country (Bulgaria).
Grade 1-2: Private School 1
Grade 3-4: Private School 2
Grade 5: Public School 1
Grade 6-7: Public School 2
Grade 8-9: Private School 3
Grade 10-12: Public School 3
I got bullied and got into fights in all of them. My childhood was an absolute nightmare outside the comfort of my home and my loving family.
In public schools, I got bullied because I did very well academically and come from a wealthy family. I was surrounded by mediocrity, which was quite demotivating as you might imagine. It made excelling that much harder, as you got mocked for trying to do something with your life.
In private schools, I got bullied for not parading around with my family's wealth status as much as the other rich kids did. I would say they were just as bad as the public school kids, with the exception being their significantly wealthier background.
My interest in computers and technology made everything even worse.
Despite everything, I achieved a GPA of 5.77/6.00... But by grade 12 I was so broken and indecisive that I had no idea what to do with my life. I went for a business degree in a business school which has partnerships with many international universities, including British ones. The business programme I enrolled in was delivered in partnership with a UK university.
I got bullied there as well - most of my classmates were the same type of inconsiderate rich kids I described above. However, some of them were even worse - the stereotypical IB wannabes, big shot businessman wannabes, CEO wannabes etc. It was a corporate snake pit. I ended up hating the atmosphere and my degree as well. Despite not putting any effort in it, I managed to graduate with a solid 2.1.
It's been one hell of a ride, to say the least, but it made me the person I am today. I decided to follow my passion, which I have been ignoring for a very long time - studying computer science at university level. I am set to start at The University of Nottingham in September 2015. I am 22 years old.