"What you do at 8PM matters [...] what you do at that time will determine what you'll be in 10 years."[1], back then I was playing video games at 8PM, or watching Netflix, probably until 2-3 in the morning, I sold my gaming computer and replaced that time with learning new things, working on my side projects, reading, or sleeping. Every time I feel like getting some cheap dopamine shot I simply remember that quote, and immediately get motivated to do something better for myself.

[1]https://youtu.be/uVqoU2FzBiA?t=255