To start off, let me just tell you how hard it actually is to write a damn book. You're creating worlds solely from your own imagination; plot lines, characters, places, personalities. It all boils down to just what you can dream up. There are no limitations, so long as the writings good and you put your time and effort into it. But it's time consuming, and it's so very easy to get writers block. I have that problem, I'll start out with a good first few chapters and then it's like a brick wall in my mind.
The problem with writing, well for me personally, is knowing what kind of story you want to write, but then trying to get it to that point. Writing a book takes dedication and a certain level of skill. It's hard to write a book that people will actually take the time to read, on some level you have to be able to make the sentences and paragraphs flow smoothly, to create that picture in the readers head. To allow them to experience the world in the pages as you do. You have to be descriptive or give enough description that lets them picture it themselves, and filler chapters of a book are the hardest, sometimes they're short. Sometimes they aren't. It just depends on the content within.
Being a good writer is about knowing what your readers want in a good book, and giving it to them. As a writer there's nothing more satisfying than reading their comments, telling you to upload the next chapter or write a sequel. To give them more. It's nice knowing that someone is interested in your writing. But it is a hard job, you have to want to finish a book, and when you finally finish it, it's like a weight lifted off your shoulders but then you're right back at it again with a new one. It's almost addicting. However, I wouldn't give it up for the world. It's my favorite pastime and I enjoy it. I like writing books that I myself would like to see and read and that's what I try to do and you can only hope to be as successful as your favorite authors, and one day I hope to achieve that dream. Until then, I'll stick to my unfinished books, writing and dreaming as I go