time is going to take my mind and carry it far away, where i can fly

So I'm reading this book, for the second time. I read it about a month or so ago and now I'm reading it again. The second time is always the best because although you already know the ending, you can really take it slow, page by page, paragraph by paragraph, sentence by sentence, word by word. You can appreciate the long descriptions in the middle of the suspense because you aren't desperate to figure out the ending. This book is by far the best I have ever read. Every single word is perfectly placed and thought out. It's probably the deepest book I've read. I admire the reader more than I could express.
However, this is her first novel. Which may mean that her next could only be that much better, but what if its not? I have always kind of wanted to write a book, or just write in general, and I could only hope that if I do, it is half as good as this. But as I read about her on the back inside cover, it seemed to me that her life was a bit like the book. Which is probably why its so good. But it also makes me wonder, what if we only have one story? What if, when we write about something thats real to us, it's only a one time deal? I'm always afraid that I will put my everything into this one amazing book, and then that will be it. I won't have anything left to say, anything left to think, to feel. And then what? Maybe thats why there is only a handful of really deep, really thought-provoking books.