I have the Resmed Airsense 11, and it basically does all the work for you. Just look up how to get into the hidden menu, and how to adjust the pressure and other settings. The machine is so advanced, it finds the right setting on its own. I never got any technician or doc involved, just bought a cpap, looked up how to use it, and learned it all on the go myself. I prefer to have it all in my hand, and not be dependent on some white coat and wait for many weeks if something needs changed... and then have the pleasure to pay absurd money for the "service". Naw man, just like with gear, time to take it in your own hands my man!
Check out the
https://www.cpaptalk.com/CPAP-Sleep-Apnea-Forum.html , you will find everything you need on there, wonderful ressource all things sleep apnea and how to treat it.