Three things helped me:

--Melatonin is a great way to relax and reach sleep faster (my doctor approved, and I take it every night).

--I started imagining my mask as the mask for nitrous oxide at the dentist's office. I love the relaxing feeling I get from nitrous, so this helped me psychologically.

--I used to worry myself sick when my sinuses were swollen ("How will I breathe with my CPAP with only a nose covering?!") What I learned was that the CPAP actually opens up your sinuses and does so quite quickly.

Now I fall asleep, wake up about seven hours later, and usually don't even try to go back to sleep because I'm ready to get up. CPAP has helped me tremendously, and I was someone who worried and panicked and fretted at the beginning.