After Death

When I was alive, I had nothing and was still mediocre. After I die, will there be a different kind of life in this world? After reading so many novels, can I really travel to other parallel times and spaces? Or maybe it's just illusory, my own fantasy, empty when living alone, the happiness of being alone, alone. ? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.