Purpose?

What is purpose? I’m 17 and I barely even have a grasp on the word itself. I have so many passions and so many interests. Who’s to say I can’t do them all? I don’t even know if I want to have a purpose. If I have a purpose that means I have responsibilities and I’m in a certain category and people will look to me for answers. Maybe I just want to be free flowing and mysterious. Maybe I want to be multifaceted and have the freedom of choosing every direction and corner my life goes. I feel that once you say something it’s final. At least when I say something, I usually can’t go back on it. Not because I don’t want to, but because of my own stubbornness. If I don’t have to tell anyone my ”purpose,” to me that gives me freedom and that’s all I really long for.