Many of us, have read GM-sections in RPG, RPG blogs, forum discussions, and sometimes books about the storytelling art.
All of these contains tons of interesting tips/techniques (and some will contradict each other, you don’t GM a gritty mega-dungeon and high-school drama game the same way), so I am curious which ones are your favourite and how do you use them in your game
The players will find a way to make you need to.
No, the world is enormous and you only need to worry about a small part of it. There is literally nothing over there, and no reason you’d want to go there. The game is over here. Leaving this area is the same as leaving the game, which you are free to do.