Sorry that you are having a difficult time at work. Adjusting to a new environment can be difficult. No matter what kind of experience or expertise you may have, most companies are looking for employees who are willing to adjust to the needs and the demands of the customers and employees they serve. Things just don't seem to be going your way on this one, and that is okay.

Chances are others at your workplace have struggled with the same issues. It is possible to seek out a co-worker or supervisor who may be understanding of your needs and may be able to suggest an effective way to speak to management. Are their other personal problems in your life that you have not had the resources to resolve and are using work as a way to run away from those problems? Is there a safe place to turn?

I commend you for getting assistance with your safety concerns and am happy your pervious workplace took you seriously. When a problem such as stalking, bullying or harassment is not handled quickly and effectively, there is a likely chance that the problem escalates and someone gets hurt (emotionally or physically), and often how that person is able to heal themselves is not in the authority or power of a large corporation. If a safety vest doesn't work(or is not an option), ask them to recommend something else and explain why. I suggest finding a co-worker or supervisor to check in with.