Knowing if you geniuenly have feelings for someone.

I don't think it's stupid to not have feelings for anyone. It could just be that you haven't found someone who clicks for you, you could be aro/ace, or even demi and that's okay. You could be something else entirely and that's completely okay too. Just because you lack having romantic feelings for someone doesn't make you stupid. I do hope you're eventually able to figure it out, and don't worry if you're not sure yet, it's okay to not be sure about how you feel