Hello to you from another cat lover in San Diego! This may sound weird to you, but have you talked to your parents about how you feel? You might tell them how much it means to you, and ask them to let you know she went to a good place.
I loved my kittie Smokie when I was younger, but it turned out we couldn't have her, plus my Dad got really sick around cats. I mean REALLY sick!! I was sooooo mad when my parents gave her to a new home.
Now that I'm grown I have a cat that has been with me a long time. But when I was young, my mom let me get a lot of stuffed animals, which I still do to this day!! And I would sleep with them, believe me, even when I was a teenager, I had a bed full of stuffed animals. I still do LOL!!!! And now they make better ones that don't cost so much. Cats can be kind of expensive to keep, food and litter and vet bills and all.
I hope your young heart heals real soon!!!!!!