Asking for signs of bad events is out of fear of not being able to cope if something did happen. i get being prepared. But when you prepare for bad events youre adding energy to making them become reality.

Your friend saying you can live the life you always dreamed of is true.

I would worry (manifest) less about what is going to go wrong and focus on what will go right.

Ask for signs of beautiful things coming. think back to what has already come and what you already have. focus on good and your world will have more of just that.

As for the skinned knee could be a multitude of reasons there. but the one that sticks out in my mind is that you were probably holding a lot of thoughts to your sisters injury and manifested one in the same location. almost a extra push from the universe telling you how powerful your thoughts truly are.