Often past failures can stop us from moving forwards, it is better to let them go. We can keep trying after failures, and eventually learn to find a way forwards, if it means using determination or else finding a reconciliation inside yourself to move down a different path more suited to yourself. Dwelling on past achievements is also not always a good thing, it is a question of measure. I have moments of pride when I recall past successes but these don’t guarantee future successes and life is a long journey and it is better to live in the present rather then the past.