WELCOME TO MM Rayn!

I hope Dennis is well and I'm glad he referred you to MM.

There's plenty to read and comment on here as you get acclimated to our 'tiles'. I've been writing for 4 years now (maily poetry) and like you, am grateful for online writing forums. It gave me my start!

It certainly sounds like you have the background experience with critiquing and being critiqued. Critique should be fun and should help the writer (not harm) and I hope you'll find that it is fun, friendly and helpful here.
Where are you from (and would you mind if I posted your state/country in your profile)? Is your first name "Rayn" -what a unique name!
As we always say here, if you are seeking honest feedback, then you'll find it here. Always remember though, your works are your own and our suggestions are yours to take or toss.
If you have any questions, please ask.
Cheers
~Cleo