I'm so sorry, Skyenoir. My heart just broke reading your post. Cocoa knew she was loved by you and you did all you could. She might not have had the best care before she came into your lives... but I'm sure as soon as she did come to be with you, she knew what it was to feel loved and truly cared about.
You gave her the best days of her life. Know that and take comfort. You're in my thoughts
*hugs*