Welcome to our forum.
Right off hand I didn't spot any errors in your spelling or grammar; your English seems to be pretty good. It will flow more naturally and "pick up tricks of the trade" as you get more practice writing and reading it.
It sounds like you have a number of years' poly experience under your belt. That will make you a valuable contributor to some of the new-to-poly threads around here. People will seek, need, and appreciate your advice.
Of course that deal works both ways. When you have a thought, question, or concern you'd like to share, we're here to help and listen. Check out our various threads and boards and see what calls to you.
The commune you lived in, was it a poly commune? Just curious.
Glad to have you aboard,
Love means never having to say, "Put down that meat cleaver!"