Who doesn't have a hurtful past? Everyone, if not most people have a scar or a wound from something they experienced in their past. Sometimes we carry that hurt for the rest of our lives. And that is perhaps because we don't know what to do with it.
We were not made to bear those burdens so God has given us a way to find deliverance. Joseph is our teacher and he learned how to turn the curs of past pain into a beautiful blessing.
Listen to his story. It can be done. If he can do it, then you can do it. If you believe and apply what Joseph did, you too will find the freedom you so long to have.