Whatever was in your past has occurred and there is nothing that you can do to change that simple fact. The sooner you accept it, the better it will be for you. A lot of people like to dwell in the past, thinking how and what they could have done better only to make themselves feel worser than ever. You need to realise that what matters right now, in this instance is your decision of how to move forward. Are you going to be like most who move forward constantly thinking about the past or you going to let the past remain where it rightfully belongs – in the past – and focus on what you can do better in the future? The power has always been in your hands, you were just too consumed in your past to see that.