Question

how to forget about past?

Answer 1

Answer:

if you are suffering from post traumatic stress then I would suggest consulting a therapist or a psychiatrist

Answer 2

Answer:

You can forget the past by focusing on the present and the future.

If we keep looking at the rear view mirror of the car we are bound to get into an accident. Don't look behind too long. Look back briefly for lessons to be learned and move ahead with hope and an optimistic mind.