A year and a half of my school life destroyed

I was bullied at the age of 15 because I trusted the wrong person. Me and a girl I was friends with shared sensitive images, which she ended up sharing with other people. For a year and a half I was threatened online and had been called horrible words, I will always remember what they said to me. The worst was the boyfriend, who sent me death threats, telling me that I should be 6ft under and I belong in hospital. Like I said I will always remember everything, but I’ve learned from my mistakes, maybe now I find it a tiny bit hard to trust people. I know that when someone is bullying you, tell an adult straight away, for me I told my older sister. Always tell the truth if it may be embarrassing, but its just good to be honest.