We are not born in sin; we are each born with powerful tendencies to both good and evil and the drama of human character is in the struggle and balance between the two. The corrective mechanism is teshuva, repentance.
The world is rife with worthy causes we have taken up with enthusiasm and then abandoned. Rededicate yourself to repairing God's anguished world. If we manage that, the oil will burn for countless nights to come.