I am being harassed

First, I apologize for my English, and secondly, I hope to make myself understood. The problem is, I am being harassed for 2 years (since 2012). He is a neighbor of mine (he is around 40), with whom I was initially friend. He tried after a while to make sexual advances and I refused him. This really pissed him off, and that was the first time when he threatened me saying that he will tell my parents very "bad" things about me. Then he apologized and didn't bother me a while (around 7-8 months, I think). He is a divorced man, living alone and I don't know exactly what is he doing/working, but I don't think it's very legal. Also, he is not very bright, he is kinda stupid and rude. I also think he has serious mental problems, he is agressive sometimes. Then he started to send me text messages with what I am doing and so. When he first saw me with my boyfriend, he told me he did see me and that he knows where my boyfriend is working. (this happened in july or august 2012). In april 2013 he tried again to talk to me, this time more agressively saying again he knows my boyfriend and started to threaten me by saying that he will harm my boyfriend and family and he was repeatedly asking me why don't I want to be with him. I panicked a lot and since then, he is harassing me mentally, telling me he will be where I will be (for instance if I want to go to a restaurant with my bf, he will be there watching). He also threatened me that if he catches me with another man, he doesn't know what will he do to me and that he will tell my boyfriend. I also observed how he followed me with his car in the town, and he calls me every night, because he wants to be sure I am home and not out. I have to give him the report everyday where am I and when I arrive home. I am stressed. Sorry for describing this story in a very chaotic manner, but I am really desperate. This is the first forum I entered and described my problem. I hope I will get some advice, 'cause I am going crazy. I can't go to police because he has relations. I also need to point out the fact that I am coming from a quite poorly developed country, where children and women's rights aren't respected at all. So, going to police isn't the right thing to do, because he had to deal with them and worked with them and police is corrupt. He is also involved in politics, so it's hard for me to find a solution legally. I want to ask you a different kind of advice, if you know some kind of reverse psychology, I want to scare him (he is living near me, but that isn't his apartment), I want to scare the crap out of him somehow, but I'd like to stay anonymous. I don't know what should I do. I don't have friends (male friends) to defend and protect me and believe I am feeling lonely and somewhat prisoner. I can't go out without stressing myself that he calls me and I can't go anywhere and be relaxed. I don't want to do something stupid later, because I don't know how long can I stay sane. Please help me.

He is stalking you. That's how it sounds. So, you need to document every encounter with him to show the police in case this gets worse. You can contact the cops, but they might not do anything right away.