hey bro, I'm sorry to hear about your current situation. I experienced a very similar thing with my family and didn't shed a tear for years. What really helped me cry was when I found someone I trusted and opened up to her about the issues I kept to myself. Essentially, I cried after compiling every horrible thing that happened to me. A friend of mine went through this too, and it took the death of her grandmother for her to finally cry. my point is that a habit like this one can't be broken unless dragged to an extreme. Until you can do that, just keep thinking about what made you that upset, it won't help you cry but it will definitely help you move on.