there is no other way out. you can't simply letting go everything in just few days or even in a year, as i said, life is about experiencing and learning, if you can't do this, if u can't take an advantage on that, and keep in a negativating way, u will definitely ended by cutting yourself into pieces day by day. it is not easy. it is not just shutting off your heart so that u can freely forgetting the things. NO. but, however it is, how hard it was, keep strong and always says Alhamdulillah, we are still alive and Allah is always with us.