Live in the present, forget the past. Give up hopes of future.
You are not bound. You have got free will. You cannot change the experiences, the results of Prarabdha but you can change your future by right thinking and right action and thus make your will pure and irresistible. You can attain Self-realisation with the help of a dynamic will.
Do not brood over your past mistakes and failures as this will only fill your mind with grief, regret and depression. Do not repeat them in the future.
An evil man is a saint of the future. See good in everything. Destroy the evil-finding quality. Develop the good-finding quality. Rise above good and evil.