The strong divergence of paths in the state space of life, based on small random serendipities reminds me of the film:

Run, Lola, Run

https://www.imdb.com/title/tt0130827/

On the general midlife crisis of regrets and time-running out, see:

2019 Wilkins–Bernal–Medawar lecture:

Life begins at 40: the demographic and cultural roots of the midlife crisis

https://royalsocietypublishing.org/doi/10.1098/rsnr.2020.000...