Further Advice
Here are a few final pieces of advice before you get started. These will help ensure a smooth and positive experience with your group.
The rules exist to facilitate the gameplay, not the other way around. Having consistent rules to help guide the players in interacting with the fictional world is tremendously helpful, but the Storyteller's decisions always trump the rules written in the book. Be willing to bend or break a rule if it leads to a better play experience for your group.
Utilize Check-In and Check-Out questions before and after game time. My go to check-in question is “what is a goal that you have for your character this session?” 2 of my 3 check-out questions are non-negotiable. The first is “Shine a spotlight on somebody else for making the session more fun for you.” The second is “What do you predict will happen next time, or something that you're looking forward to happening next time?” The third checkout question can vary, but a good option is “what is something you learned or found challenging about today's session?”
The Storyteller is not the enemy of the players. While the Storyteller is creating the obstacles for the players to overcome collaboratively, the Storyteller is not trying to stop the players from accomplishing their goals. Instead, they want the players to succeed and create those obstacles so that their eventual triumph is that much more satisfying. Your players may not always grasp that, and may act adversarial to you, but remember that the Storyteller is a participant too. You're supposed to be having fun too or it won't be an effective group.
Finally, there's a famous saying in TTRPGs that's stolen from the military: “No plan survives contact with your players”. No matter how well you think you're prepared for the session, your players will make decisions that you never predicted in the game. Where possible, try to roll with it and ad-lib on the fly. If you're truly stumped by their actions, you could always ask your players a question like “how do you think this character would respond to your demand?” or “What do you think would happen next?” Getting the players' input on what the consequences or outcomes of their actions should be is a great opportunity to turn a moment of confusion into an opportunity for self-reflection.