I can't advise you on all of these, not having too high an interest in what the Dommes get up to myself, but first off, welcome to the forums! We are a friendly bunch, we're definitely cool

2) hell yes!
3) yes again
5) turn on! in my books anyways... your mileage will vary. And there's nothing wrong with being reduced to a sobbing ball of pain. I hear the Domly types like our tears

one thing I'm sure you'll be told many many times is that there's no one right way to do things. If it feels good do it. Even if it's not what most people are doing, if you like it then it's the right thing for you.
Enjoy! All this kinky stuff? It's one hell of a good time.