It's Always Darkest Before The Dawn (гет)

Following the Battle of the Department of Mysteries, Harry struggles with the guilt and grief that threaten to consume him. Despite fulfilling the prophecy and defeating Voldemort, Harry is left feeling hollow and worthless, questioning his purpose in a world that no longer needs him. He isolates himself from his friends, suffers with nightmares and turns to self-harm for relief, and with each passing day, Harry finds himself slipping further into the darkness, unable to move past that one moment in time.
So when he returns to Hogwarts after summer, can they save him or are they going to be too late?