New to site and due to have surgery in 5 weeks

I am new to this site and I have sleep apena. I can use all the information I can get thank you.

hi there... Do you already have a machine? My surgeon requires 160-200 hours on the cpap before surgery,  I am under the gun so to speak because I just got my machine. I am hoping to have enough time logged in. I am struggling, so I am sort of a rookie at it... 
If you have questions, I am sure someone can answer it for you....take care and good luck with your surgery!
hugs
Betty