Hi Laura, welcome to our community. Sorry to hear about your situation, I had to go through and make my inside look less visible, thankfully there aren't Psychopaths in the neighborhood but meth addicts.
I tried that film on my window as a test and decided it was too hard to get it straight and instead put up sheers and found the sheers are easier and let in more light but you can't see in during the day. With pets I was also not sure how the film would even hold up. I don't want those losers to see that I have anything inside to encourage them to try and get in. I also installed sensor lights (if you are here in the US), I found the best ones for the weather and distance at www.homedepot.com
, have a 6 foot privacy fence that I put in for my "kids" and already had that.
I don't like feeling holed up in my own home so I had a security screen door installed which is great, I can see out but they can't see in. This way I can get the fresh air and better than a storm door which could easily be a point of entry. I was training my dogs to not bark when they see someone walking by with their dogs but I stopped that because I don't know how to teach them to not bark at someone innocent in case someone trying to get close to the house comes by.
Since the police aren't able or willing to do anything it makes it even harder. Try your best to hide your actions, we set up an informal neighborhood watch so it isn't just me calling them in so they can't know it was me. I would encourage you to fly under their radar as much as possible, the more they know you are doing the less likely they will be to move on and find another target.
I am not sure that moving would prove anything, chances are you might find neighbors that are even worse, sadly. I would try my best to make myself as safe and as invisible as possible.