You may want to try an old insomnia-treatment trick: If you haven't managed to get to sleep in what feels like 20 or 30 minutes, get out of bed and do something quiet in another room until you feel good and sleepy enough to try again. Don't watch the clock while you're trying to get to sleep---just estimate what you think is about 20 or 30 minutes, and if you're still waking back up just as you are about to get to sleep, then go ahead and get out of bed and go to a different room.
When you're out of bed, don't get on the computer or your cell phone. Don't watch tv. Read a real book perhaps. Or listen to some quiet music.
That's a good reason to consider using a fixed pressure.Then I had a panic attack when the pressure changed.
Also---if you have had a past history of panic attacks and general anxiety, you might want to consider talking to your primary care doctor about anti-anxiety medication.
It's important to address the fear in a positive fashion.I was afraid to put the mask back on for the rest of the night, I think I'm actually developing a fear of it. I put it back on for the last half hour this morning and it did quell the fear a little bit but I think I'll need to stick to fixed pressure while I get used to it.
One thing you could try is this: Far away from bedtime, move the cpap to a room with a comfy chair in it. Set the cpap up by the chair and get yourself something to do (laptop, cellphone, watching tv, or reading all work) for an hour or so while sitting in the chair. Put the mask on and turn the machine on with no intention of even trying to fall asleep while you're sitting in the chair. At first don't even worry about how long you keep the mask on---let yourself take it off whenever you feel like you're getting ready to panic. Then sit in the chair continuing doing whatever it is you have chosen to do for a few minutes to settle yourself (both mind and body) down and put the mask back on and turn the machine back on and keep the mask on for as long as you can tolerate it.
The idea is for you to teach both your body and your brain what all the normal CPAP sensory stuff feels like and how to accept all that sensory stimuli as being normal when you are not also stressing out about trying to get to sleep with the dang thing on your nose.
After an hour or two (at most) of attempting to use the CPAP while awake, move the equipment back to the bedroom and get it all set up for bedtime. And then try hard to not think about the CPAP for the rest of the day/evening until it's time to put the mask on and try at the beginning of the night to actually sleep with the thing.
Keep dragging the machine into the room with the comfy chair every day until you have no problem keeping the mask on for at least an hour while reading or web-browsing or watching tv and/or you start to feel more comfortable at night when trying to get to sleep with the mask on your nose.
These are pretty normal feelings for people who are having trouble adjusting to this crazy therapy.I'm really depressed and tired and feeling like giving up on this therapy.
In my case, I was just plain stubborn enough to make this crazy therapy work even though it took several months. While it was hell for a while, I'm glad I stuck with it and with the help of this forum found a way to make this crazy therapy work for me.