It sounds like you are asking all the right questions and yes ones we have heard before
no biggy, just keep at it and educate yourself. Read up on here and see what you can find out and talk about it wherever possible. The bottom line is that you can try it or not. Both choices are valid and completely yours. The bottom line is do you want to go into a poly relationship style blindly and wing it, or not. Do you want to make a decision based out of some knowledge, or not... up to you.