I have been talking to someone that's been doing and into AP and LD but she said you could not change things with them. I myself do not know but she did tell me my best shot was to visualize the change like an event cone she said you have to do the same as meditation but visualize the part of your life to change but not a drastic change just something before the event that you want to change (the event cone) she said it takes a lot of time as much time you can give it daily and she also said it was exhausting but if you really want to try to change the past that was the only way she knew and it wasn't a guarantee. You visualize it so much that what your seeing is what really happened and not that your wishing or dreaming it would happen. I'm going to try this I know its not a guarantee and it takes a lot of time but that's all I have is time. Unless someone makes a time machine or something to be able to go back in time this is what I've got to try.