You know that rule about how when you like someone and they don't like you back in that same way and/or they get romantically involved with someone else, you are then supposed to cut contact?

I broke that rule, I tried to just be friends with her but, she is just so emotionally distant,
It hurt so bad, I ended it a month ago and it hurts. I somewhat regret my decision even though clearly I made the right choice.
I miss her, but, I know if I went back nothing would change.

Thought that maybe if I try something different I'll make a change and be happy... But, I was wrong.. So wrong.
I feel so stupid for going against what has been repeated to me before I even knew what vaginas were.

How do I snap myself out of this depression or could you give me some niffty way to an hero that hasn't already been posted here a thousand times?