Additional thought - have you seen the third Indiana Jones movie?
A long time ago - I'll have to go by your scene-setting ...
There is a scene where Indiana has to step out in faith in order to save his father who is dying of a gun shot wound. He must acquire the legendary cup of Christ by passing three tests. His father is a believer in the Grail and has a Grail diary with important information in it.
The third test requires a leap of faith to cross a seemingly bottomless chasm. Indi is hesitant to believe in the invisible bridge illustrated in his father's diary. He tests its reality by throwing pebbles in front of him and sees that the bridge does seem to exist, but is it an illusion, does it go all the way across, will it support his weight?
In the movie
Wanted the assassins can curve bullets around corners and obstacles. In
The Matrix there are dozens of feats of physical agility that aren't possible. The hundreds of chop-socky martial arts films I watched as a teenager regularly featured fantastic moves that could never be performed by mere humans.
Indiana Jones is just another movie.
These things he does not know for sure but he cannot go back, so he steps out in faith and ultimately reaches the other side relatively easily. The diary helped him to pass the first two tests although things could have gone very badly and very nearly did. Faith is not a guarantee of a smooth life. It is what fortifies when life is very difficult.
If there was indeed no turning back as you say then whether or not he had faith is a moot point - he HAD to do what he did. Believing a supernatural force is assisting you isn't proof that God exists - it's merely a visualization technique, thousands of which can be found that do NOT feature any omnipotent beings but merely serve as a means of gaining internal fortitude.
Now if you phrased it as:
"
Faith is a way of surviving in life when you have no internal strength of your own to call upon"
... then I would agree.
Finally, faith is developmental in the same way that cognition and morality are developmental. The child leaping into his father's arms exhibits a very simple level of faith development. The person who simultaneously carries doubt and disbelief has moved to a higher stage where paradox and complexity can be accommodated. This is why someone may say "I am an atheist" yet still enter into prayer as a meaningful exercise without being a hypocrite.
A child jumping into his father's arms HAS no other knowledge or experience.
It's like playing roulette. You put $10,000 down on double-o and let the wheel spin. If the number comes up you can attribute it to faith, faith that the number would come up. If it fails to come up then it is seen as either a lack of faith or going against the will of God. Either way it is quickly forgotten, as it is not supportive of the faith-based viewpoint.
Cognition is a scientific process, not a trial-and-error one where you
hope something will or will not happen. Morality is simply a group of socially-accepted-and-approved rules of behavior, again, not having anything to do with faith.
An atheist, a stone-cold dyed-in-the-wool non-believer of preternatural beings, would not pray - ever. They ARE being hypocritical because they are hedging their bets.