It’s kinda difficult to find cracked Linux-native games, though one site that I do know which has a section for it is Torrminator. Don’t really want to get in trouble with the mods so can’t post the link, but if you do end up finding the site, then I hope it has whatever games you’re looking for.
Waking up at the same time every day, no matter if it’s a weekend or a weekday and no matter if you stayed up too late and won’t be getting full 8 hours of sleep.
As obvious as this might sound, this has really helped me to regulate my sleep schedule, something I’ve really been struggling with for pretty much my entire life.