This is the number one thing you need to stop worrying about if you want to write a novel. The opening scene you are angsting over doesn’t mean squat. Now when you have finished your first draft, it starts to become important. When you have finished your fifth draft, it becomes very important.
But to start, just write what excites you, what you care about and keep going.
Remember, your first draft is you telling yourself the story. Your second and subsequent drafts are you telling readers the story. Big difference.