I watched an interview of a man who invented a plastic plate that holds a drink. He said it was an idea that many people had had before. When he went to file a patent, he said there were 1,700 provisional patents filed before but they had all expired without being converted into a non-provisional patent.
He got a patent. He sold $10 million worth of product.
I have a prototype of a similar plate in a box inside my storage shed. I didn’t even file a provisional patent.
Follow through.