Hi Mahlyath, sorry that you had a frustrating time with the stealth segment, I’m not sure if you caught on during your time playing but you actually unlock the option to sprint with the Shift key at that portion of the game.
An instructional prompt was meant to be displayed the first time you’re spotted during each attempt, but it appears there was an bug in the display logic and it only ever blinked by once. I’m working on a fix to make that prompt more noticeable.
If you wish to give it another try, you should be able to pick up right where you left off. Otherwise, I appreciate you taking the time to leave some polite feedback despite the issues!