Hello I'm a fucking nerd so here's some tips on the nights on FNAF SL.
Literally everything until night 4 is easy as shit. But, on one of the nights where you have to deal with Funtime Freddy and repairing a stuff on a panel. The whole strategy is to literally act like a paranoid CoD player and constantly switch off your monitors the moment you hear audio queues. I have no other good way to explain it.
On Night 3, if you have trouble trying to press on Bonnie's button, circle your mouse around in a quick fashion and wait till you see some part of Bonnie, keep the edge of your flashlight shined on him so you can see whether or not his button is out. The worst spot to have him at is on the right bottom half of the screen.
On Night 4, This night literally SUCKS, but try to get a good view of the springlocks in the suit and prioritize the ones that are the least winded, preferably ones that are half way winded. throughout 30-40 second in the night try to keep them remotely close to being fully winded. then 40-60 minutes keep it winded up on 3/4 quarters of the way. On a 60 to 90 seconds, keep it half winded, then on 90-120 keep it winded a quarter way. When you're dealing with the little dudes that are climbing on your suit, just press and hold A and D twice in a remotely fast manner, it'll fuck with the springlocks but not "too much"
On Night 5 regarding Ennard. Prioritize the shit out of audio queues. Ennard's audio queues can be extremely faint so checking the only 3 cameras close to the office is always important to do. Typically with Ennard, he has one audio queue from either direction signifying that he's in that general direction. Before closing the doors, try to check the camera he'd typically be on and if he's not there, you should be safe. But if he's on that camera, there's usually a second audio queue indicating he got closer or just left that camera, a third audio queue indicating him leaving the front, left or right door if he was there. ANOTHER THING is that this night lasts for 9 minutes, each hour being 1 minute and 30 seconds. The best luck I've had was having 90-80% on 1 AM, 70% on 2 AM, 60% on 3 AM, then so on so fourth. I try to at least use 10 or 15 percent power each hour. So using cameras for more than even 2 or 3 seconds is a huge "no-go".
I haven't beat night 5 but it's the best strat I have.