Hey everybody!

I know it will be a topic what probably exist here for 1000 other times but please try to keep my question seriously.

So, I've been playing sng-s for 5 years now, and thought to change to plo cash, but got a lot of questions about it.

-Where to start? (is there any good video series what lead me from the very begining to advanced parts?)
-What kind of HUD should i make?
-Any other basic things what I should know before start?

I welcome any good advice to start (I really want to do it in a profession way so help me out guys:) )

Thank you very much!