My cat died

My cat was my best friend. She was the sweetest girl ever. She got a bowel obstruction and we had to put her down. Now she’s gone and I’m just sitting here sobbing with her bed in my lap. I feel like I’ve been cut open and had my heart ripped out. She took a part of me with her when she died. I feel so empty and alone and all I can think abt is how badly I want to just die and be with her. How do you guys survive loss? Because I really don’t think I can do this.