It sounds like you know what settings you changed so go back. At worst if you can't go back you can do a factory reset to get back. Yes, you would restore your files from backups but cheaper than a trip to the service counter.
Whenever I open my laptop the screen will not turn on. I've changed the settings so when I close it it isn't supposed to shut down or go to sleep. I did this after it wouldn't wake up from sleep mode. I constantly have to turn it off and back on. Idk what else to do but it's super frustrating to constantly have to do that and lose my place on whatever I was doing

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