You are the best judge as to how you felt you slept.
Best we can do it notice the breaks in therapy when you turned the machine off and back on again.
Now there is a way to zoom in and look at the flow rate to maybe spot some awake breathing but that takes a lot of time and experience to learn how to do that. I didn't know if you felt up to that yet but if you do...go here and watch the videos and you can get an idea what to look for.
http://freecpapadvice.com/sleepyhead-free-software
I think you are doing extremely well for jumping into the deep end without any help besides us and you are using a mask that isn't the easiest of masks to adapt to.
It's quite an adjustment just getting used to all this stuff...heck for the first 2 weeks when I started therapy I woke up probably 25 times just to feel the mask on my face.

Best of all...even with the hurdles you are facing you are actually noticing improvement in a really short time. That's wonderful news.
It will just get better once you get a mask you like and you get more used to all this stuff.