If you're running out of power -
Try and conserve as much as you can, and not waste it on the other girls except for Foxy. You can stall foxy's runs by keeping a watch for her on cams, and listening to the other girls' cues, instead of watching them on cams.
If you're getting jumpscared -
Keep track of the animatronics, and have an idea of how close they are to coming to your door. Freddy giggles each time she moves, and after 5 giggles, she will be at your right door in a couple seconds, so hear for her giggles.
Chica and Bonnie both have random paths, but make the same footstep noises when they appear at your door, (Chica is always on the right door, and Bonnie always on the left) so listen for their cues and close the appropriate door when necessary.