really struggling with this please help. i was severely bullied during my professional doctorate, which I left last year. i complained at the time but nothing happened. i would hate for this to happen to someone else, and feel like I cant just let it lie, morally. however i am frightened to make a complaint that is identifiable in case the bullying reaches me again, which it I worry it could as the perpetrators were particularly vengeful and frightening. should i send a letter? Or let it go? Thanks for any thoughts.