How to stop a women stalking me used by satan?

is going in an internet anonymus forum that i use to go and posted my ex photo by a link. now she is going there ofter and is answer and trying to attack me . she contacted my ex friends with a fake profile and my ex erased her profile. she s going in some foruns saying that i m a false prophet and trying to look as a victim.she think she s the true christian and me not. and all her communities are communities like "i hate;;;" " i dont like" etc.yestarday she was answering my questions one after other i simulating that she s another person... then she gone. thats not good for me .how to stop her to stalk me.?she s weird and allways trying to show she s against me like a pervert. she came back to the situation that she was liberated by God now she has to ume the consequences not after months doing what she s doing. thanks folks