Monitor the cameras closely. When she disappears from view, use your flashlight to find her before she disables your camera system.
According to the FNAF Fan Game Wikia , use these tactics for the main animatronics: Hidden Gems: A FNaF Epilogue
is a fan game developed by The64thGamer meant to cap off the series timeline. To survive, you must manage animatronics via cameras and vents, followed by a final power-down defense. Character Defense Strategies Monitor the cameras closely
Experts suggest spamming the button in the center of the screen, as this is the primary location for Freddle jumpscares. Hidden Gems: A FNaF Epilogue