I'm very sad, and this is what happened..?

Hello, i'm 15 years old girl. 2 days ago, my best friend left for good. Actually, she's my maid who accompany me in everything i do. She has been with me since i was 9. i'm freaking sad when she left me. i cried like the world is tearing apart. I cried, mainly because i know that if she comes back to visit me, my feelings for had already faded... i used to have a maid who work for 12 years. She was awesome too and when she came back to visit me, i didnt feel the same way i did for her before. And i'm afraid this will happen again. i want to stop crying but i know that once i stop, my feelings will start to fade. But if i continue to cry, i might get into depression. Please help me. D: i really really miss her.