Just stop caring about everyone and everything, in the end you are the only one you can trust and its hard to live with at first but its the truth and its life
It's so easy when so many people have let you down in life. Just stop caring about anyone. You can do this by telling yourself in your mind that everyone is out to hurt you, so you need 2 protect yourself from them by not getting emotional.
The more pain you put urself thru the more heartless ul become!
There are many ways to be heartless but I won't state any here as I don't think it is a nice thing to be.