I'm confused. This just seems like feel-good bullshit advice that only works for people in extremely good circumstances.

There's a false equivalence between -

“All it takes is for one to work out.”

and the following:

- "You don’t need every job to choose you. You just need the one that’s the right fit."

- "You don’t need every house to accept your offer. You just need the one that feels like home. "

The latter assumes that _every_ attempt you make has a chance at being "the right fit", "the one that feels like home". That is not the way things works for 99% of us.