Any tips on how to get over this little girl?

Just try to think of all the happiness you brought to her just by showing up to see her. Think about the light in her eyes and the Warmth of her smile. and then remember that's she's in a better place now watching over you, and she wouldn't want you to be sad. Maybe you could write a song for her and dedicate it to her. That would be an amazing thing to do for her.