Living a new life

Severus Snape dies at the shrieking shack. Death is not what he imagined it to be. He craves to live again and his wish comes true and he ends up traveling back in time to his 3rd year at Hogwarts. Reborn and humbled, his perspective on his life changes drastically. He fulfills some dreams, he understands that there will be some inevitable mistakes and he makes a new best friend .