My friends may hate me?

El
I invited 5 girls to come to my 16th birthday party. Tomorrow is my birthday and yesterday all except 2 canceled and today the other 2 cancelled I can't help but feel like shit because my parents bought a grill and fire pit and spent over 300$ on decorations and food. I feel like my life is going downhill. Anyone had any similar experiences and how I get out of my rut so I can be happy for turning 16.