https://casr.adelaide.edu.au/casrpubfile/2951/CASR197.pdf australia is even more spread out than the USA or candada, being the same size and having vastly lower population density.

This study finds that

The most common risk factors for fatigue were long distance driving (41.4% of crashes), no/reduced/broken sleep (27.6% of crashes), illicit drug use (17.2% of crashes), and abnormal work/sleep routines (17.2% of crashes).

further

Fatigue contributed to 4.3% of casualty crashes and 11.5% of fatal crashes. Most fatigue crashes occurred during daylight hours (72.4%)

literally 1 in 10 fatal crashes involved fatigue, and 4/10 fatigue crashes involve long distance driving. Maybe just take a break, 10 minutes isn't worth your life. It's not an issue of how tough or manly you are, how bulbous and engorged your testes are, or whatever other issue of ego you're having. You are an animal, you get tired.