This paralyzing stage is when the body goes to sleep and so to say disconnects from the brain. From here you can either have a LD or an OBE.
You say you are new to the vibration thing but it looks like you have little problems with reaching the stage. And you are very lucky!
In the beginning it best to make good habits, if not these can affect your later progress.
One of my tips is, when you get to the vibration stage, do not be afraid. Im not saying that you will but if you become, like my first meeting with the vibrations, just clear your mind and move on. This is the same with your excitement. The point isnt to reach the vibration stage, its is to go beyond it. Its like a bump in the road... dont stop at the bump going all "It tickles in tickles!!". Just move ahead like it wasnt even there. You can do this by keeping you mind blank like you do, or use a technique. Im just saying this because i made the stupid mistake by fearing the vibration level at the time where i didnt know what it was, so i have problems with reaching it now.
But your on your way. I wish you good luck