Am I really numb to everything now? in Maze of my mind

I think I have really turned cold. numb and unbothered by my failures. How do I not even regret failing my entrance exam for medical college idk. It’s strange that from being a top student I just went to being an average one that didn’t cut it. I have been binge watching kdramas and not crying over the exam. I don’t feel anything and I am worried. Because this means that I no longer care that my studies are not going well. I have always been afraid of becoming one of those people who even if they care for something or worry about it, they can never do anything about it.
I don’t want that.