A fresh college graduate at age 22 does not understand what 60-100 hours mean. The closest frame of reference they have is pulling an all nighter before an exam or to get a term project done. They can't contemplate their romantic relationship falling apart, the lack of feedback resulting in continuous self doubt keeping them up at night when they're supposed to be resting or how shallow friendships between colleagues are compared to friendships between students (especially when their colleagues have families).

They understand what it means to soldier on despite being tired. They don't understand how much they've taken for granted all that support and feedback that was able to let them cope with the stress, and that now they're on their own.