Psychological Mafia

Initially, I wasn't aggressive or condescending, just wanted to help.

Helping means coming up with an interesting setting and facilitating the game. Without any "I'm an expert and I'll teach you how to play" attitude. Just run the game.

As for your outbursts... Get it through your head that you're not the only one here. And a couple of successful games, especially exclusively on the Mafia side, doesn't make you special in any way.