Baby’s birthday party

I’ve been so excited to plan my daughters 1st birthday party. I really wanted to go all out with Sesame Street theme because she loves it. I always thought having a summer baby would mean awesome birthday parties. But pretty much no one is able to come. And there were over 20 kids invited. I already rented out a clubhouse for $175 for it. I feel like it’s going to be such a waste to do all the decorations, food, goodie bags, so many cute ideas that I had. I just dont know what to do. I don’t want to cancel it but I’m just so disappointed that no one can come. Any advice or similar situations? Just looking for something positive I guess :(