Mask fit and machine settings can be tricky to get dialed in, and they make a big difference. There’s a pretty good YouTuber with a channel called CPAP Reviews that may be useful for you. Your doctor and DME provider should be a good resource, and in many cases they are…buy sadly this can be hit or miss.
Beyond Good & Evil, 2003. It’s been so long since I played it, I don’t remember much other than it was a sandbox and it had some neat mechanics and cute characters and I loved it. The closing credits musical sequence is magical, too.