Q. How does one get rid of unpleasant memories and limitations?
1. Know the impermanent nature of the world and events.
2. Know the non-existence of past events right now and accept them.
3. Be dispassionate and centered. Memories of Self are gained by service to the noble.
4. Increase prana – So Ham! So what!!
5. Have Divine company / presence.
And here is a very good quote I read somewhere “”Thinking does not empty yesterday of its sorrow. It empties today of its strength.”