Currently reading a web novel called The Years of Apocalypse. Very similar vibe and though it does not have the same literary aspirations as this one, also goes deep in the existential horror of the time loop and the alienation of your old self pinpoint in a constantly moving away past. Time loops are a fractal like that - a very simple idea and one chooses how deep to examine the repeating pattern. Also, seems to follow similar tropes in order to maintain some momentum.