How do you practice for your CEDH Deck?

Hey! Im a newbie, and I wanna learn CEDH. I know some EDH gameplay due to Game Knights and other channels, I am starting to watch other CEDH Channels now due to it being fun. But... how do you practice playing? Most folks from my LGS are too experienced already and I tend to not understand what's happening most of the time. Any tips? Thanks! :)