When will justice happen? I want them to know and feel what they did to me, but it seems like it never happens. I want them to get what they deserve. I want justice so badly!

I think you have justice and revenge mixed up. Justice is when the law comes down on someone and makes them reflect on their actions. Revenge is wanting them to hurt as bad as you did. Justice happens, usually, in a court of law. Unless you believe in karma, you're talking revenge. It may seem like a good idea to get even, but it's not. If you want them to know how you felt, simply tell them and see how they react. Revenge is a strong subject. It's all in how you look at it, but revenge is almost never the answer. Try talking to them first.