It is impossible to erase memory completely today, but there are techniques that change the attitude towards events. If you master them, then everything that was bad before will not disturb and cause unpleasant sensations.
If something negative from the days lived does not give rest, if you cannot forget it, you need to get rid of these feelings. Modern psychology offers several methods, from forgiveness to hypnosis. Start with the methods that can be done without assistance, if they do not help, go to a specialist.
Forgiveness
Almost all the pain of the past is associated with people. Sometimes a person did you badly directly, sometimes indirectly. If you forgive all the participants in the events, if you change your attitude towards them, then the memories will become different. This method requires the utmost honesty with yourself. It will be necessary to write letters to all participants in the incident. The first letter to the one who caused the most suffering.
Free up space and time when no one will disturb you. Get your paper and pen ready. And write the first appeal: "You are to blame." And then list all the negative things that the person did to you. Blame him, talk about the pain that he caused, detail every moment, remember all the details. Writing this is unpleasant, usually there are tears, but it comes out that pain that has not been relieved. This process will lead to further relief of the condition.
The second letter can be written not immediately, but as soon as it is ready. It is dedicated to the same person, but in it you need to write that you yourself are asking for forgiveness. Usually, all situations occur with the participation of several people, and the blame falls on everyone. In the process of writing your first letter, you will see that there is also wrong behavior on your part. Write about him, apologize. After that, you will feel much better. It is worth doing this for each participant in the event. If you are honest and tell everything, the situation itself will cease to seem acute, suddenly it will begin to be forgotten.
Situation changes
The transformation of the situation can be done in imagination. You need to relax, meditation or just calm music is suitable for this. Imagine a moment of the past that hurts before your eyes. And replay it, figure out how everything went according to a different scenario, how everything became different. Pay attention to words, deeds, look at the details, remember all this. This revision helps, because in the future you will remember your scenario that you came up with. If it doesn't work out right away, do the exercise several times until you believe in the fictional scenario.
Small situations can be changed with humor. Imagine the past as it happened. And then "turn on" cheerful music in the background. You can come up with a melody in advance, it should only evoke a positive. Think back to the picture and overlay the composition. And right away the past will not be so scary, and sometimes even funny.
You can also treat the participants of the event with humor. Imagine that everyone who was present suddenly became dressed differently. Dress them up in clown costumes, and let them do the same, but in this guise. You can imagine ballet tutus, family shorts or nudes, here already rely on your imagination.
