Can we erase our memory?

When you remember all the things that have been depressed you some time ago, you wished that they never happened

When you think of how it happened, you wished you were never there

Is it possible to erase the memory and pretend nothing ever happened?
What if your memory is just so good?
And isn't that denial?

Another option, totally stay away from the people who are associated or in any way could remind you of the sadness...

Another denial, but it may work...

Because I have a damn good of a memory when it comes to things like this...