What changes when the target changes
If the target is certainty, every day is a pass or a fail and most days are a fail.
If the target is being able to carry an open question, the whole picture rearranges. You are not trying to prove anything to yourself before Fajr. You are a person who has a question that is not currently settled, which is an ordinary condition and one that a great many believing people are in, quietly, without saying so.
This is not the same as being told to stop caring, and it is not resignation. Ibrahim asked. He asked out loud and he was not rebuked for asking. What changes is that the not knowing stops being an emergency that has to be cleared before the day can begin.
We are not going to give you a technique for tolerating it. Doing that properly is a treatment, and lesson six says who does it and why it is not us.