Did you know what career you wanted as a high school senior?

I am a senior and have applied to the college I want to attend and took my ACT test. Although, I don't know exactly what kind of career I want yet. I told this to my business teacher and she told me that's very embarrassing and heartbreaking to hear. She actually hurt me and made me feel bad about my future. Did you ladies know right away what you wanted to do and how did you figure it out? Thank you! <3