I am so sorry to hear this! May your cat's soul be reincarnated into a higher realm with very happy life!
It is very sad to lose one's close friend and family, especially a loving and loyal cat.
My heart feels for your loss.
But I am sure your cat is looking at you from high above, she is worried about you too! Who will look after you as she did in the past?!

Be cheerful and send warm feeling to her spirit.