you gotta find a better place to spend your time!
i know that is easier said than done.
are there some good memories that you can consciously choose to think about? Could you read a book with a really fascinating plot? if you watch movies, does that help? when you are talking with someone else, does that keep your mind off the subject? do you have a job or hobby or sport or some kind of activity that can keep your mind engaged in something more positive?
do you have a counselor or therapist who could help you? if not could you find someone who is qualified to help with your issues?
I hope others might have some good suggestions too...
They have greatly oppressed me from my youth, but they have not gained the victory over me.
Plowmen have plowed my back and made their furrows long.
But the Lord is righteous; he has cut me free from the cords of the wicked.