Welcome to the world of CPap!
Always wash your face with soap, water, and a washcloth, then dry before you use your CPap. Makes for a better seal. Also, did you wash your mask initially before using it? That makes common sense as if you purchased new kitchen utensils, you'd wash them before you eat. Good luck!
Two words: Duct Tape! Just kidding!
When I first received my CPap, I was told to sit upright and watch some TV to become acclimated to it. That helped so very much. I have never removed my head gear at night unless I was awake or there was a leak that I needed to adjust it.
If your mask and gear are uncomfortable, maybe you need to try a different type. Give it some time to become accustomed to something new. Good luck!
I only take a nap on the weekends as I am busy at work during the week. If I am going to take a nap, I wash off my make-up on my face as I do not want it interfering with the mask seal. The same is true if I have no make-up on. A greasy face makes a seal difficult. I clean my gear daily and change the water daily. No one else touches or uses my CPAP but me.