Where is the balance between being a full fledged adult and keeping a child like view on life?

Sometimes I feel like I am hecticly (sp?) busy, and standing still all at once. I dont know who I am going to be, and sometimes dont even know who I am. And especially when it comes to "my calling" in life, I still havnt figured it out. I still am putting the pieces together as to what my "Calling" is. And my question is, is does any one have it all figured out. Because I'd like to talk to them and find out how. I feel like Im the only one who doesnt have anything figured out. All I know who is who I am now. I cant see into who I am going to be. Its a bittersweet feeling being in your 20's. There's a lot of room to grow and still a lot of time. But the choices I make today effect the rest of my life. Where is the balance between being a full fledged adult and keeping a child like view on life?
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As for a career, My boss has brought up cooking in the restaurant, but it is "only applebees." So we will see. For now I am remaining a loley server. But I do have big goals...I want to start a catering business and cater to any services people would need. Cooking lessons for kids or families or people, cater their parties or weddings or events, or baked goods. Pretty much anything they would need. Problem...money. But God will provide if it is the right thing. I just hope all the pieces get put together. We will see I still have 2 years. Crazy things could happen!