They were not rhetorical questions, btw.

I wondered about you and your quest for purpose. It is an individual thing, I think.

Irvin Yalom wrote in "The Gift of Therapy" about this, the chapter "The Meaning of Life":
We humans appear to be meaning-seeking creatures who have had the misfortune of being thrown into a worlds devoid of intrinsic meaning. One of our major tasks is to invent a meaning sturdy enough to support a life and to perform the tricky maneuver of denying our personal authorship of this meaning. Our ongoing search for substantial meaning systems often throws us into crises of meaning"

So, it looks like you are at a point in your life where you are about to step out and into your own life, one that isn't going to be as directed and structured as it has been.
I think you have keen awareness, and that you figured out what Yalom talks about in that first paragraph of the chapter. You sense that you are going to have to create your own meaning as you begin your life's work. I think you can make it as deep and rich as you wish to, and that it is something that will evolve over time with your experiences.

I think you also are realizing that not all people want or search for meaning in thier lives, but that you do and you might wonder how that is going to work. I'm glad that you're feeling okay with who you are.