Steps to - Forget Things

1.Understand why you remember the issue...

It really is mostly because you aren't finished with it, or that you want to do something, such as undo it, repair it or even forget it (therein lies the problem). These actually enforce the need to remember. 

2.Consider how you remember...

Do the thoughts just happen, or do they happen on a stimulus, such as seeing, hearing (etc) something connected to the event? It can be quite subtle. 
Its very important to find out how you remember. Sometimes a feeling will prompt that memory to make new feelings. Its very much like a groove we just go into, and also like a linked chain or a line of dominoes all linked together.

3.Find out if it possible to remove the stimulus...

If you wish to forget a sad event, yet have symbols and images related to event, it is virtually impossible to forget. In this case, put those objects away, or redecorate and make a fresh start. There is a good grain of practical wisdom to the old quote "out of sight, out of mind".

4.Find out if it is because you want to forget it, to destroy the memory or the event itself...

Do you want to remember something in order to venerate or respect someone, or something? Do you want justice or vengeance for your pains? In order to want to do something, you have to have & retain the object of that wanting. It literally means that the "wanting" feelings and the "object" (being the memory) require and support each other. They cannot exist on their own.

5.Understand the context of the memory...

In order to forget it, you must be prepared to let it go. The way to do it always depends on the context.If you feel obliged to remember something, but wish to forget it, then evaluate the benefit of the continued review of that memory. If it is about a tragedy in your family or friends, can you love them enough to forgive and move on? If you have an embarrassing or a regret based memory, are you prepared to learn from it, to satisfy your mind that you will be mindful not to repeat that mistake? If it is something that you strive for justice or revenge, are you prepared to move on and no longer let the past poison your life? The story of | Romeo & Juliet is filled with examples of vendetta as none could forgive and forget until it was too late.

6.Commit, for the true solution is hard work...

Firstly, accept the event happened, forgive it and yourself and let it go.If necessary, do talk to someone. Be it a friend, counselor or a therapist. Hypnosis & meditation may help some cases as a way to train the mind.

7.After that, stop wanting to have anything to do with the object or theme...

Be bored with it, disenchanted with it, and/or remind yourself the benefit of letting go. This is the hard part as its like removing a much loved toy from a child, the child is not going to enjoy it, but eventually the child will become accustomed to putting their toys away. Its really the same thing, you must put your memories away by being prepared to put them away and move on. Be patient & kind with yourself & others.