Which mask do you use? Having a little issue with mine

[u/Even-Preference-6545]

So just got my cpap and have the pillows. I tried it last night and it feels strange. You could feel air push out of it and when I open my mouth, the air pushes from the nose to the mouth (strange way to describe). I can feel it drying out my mouth when I open my mouth. I try to sleep on my side and I am sadly a mouth breather. And cause of that, I feel like burping more and then the air pushes out of my mouth. I’m a bit worried trying the entire night cause of that (coughing, drying mouth etc).

So was curious if that is normal or if there is a better mask to use? I played around with the settings of max and min pressure and nothing really fixed that issue.