Lazy?

I may seem I'm lazy. But writing a book is not your usual kind of job. Actually, it's kind of hard to call it "a job". So, what's the difference between being a writer and being a lawyer or ,for that matter, any other profession? I definetely have passed a lot of time apparently doing nothing apparently. But that doesn't mean that I'm not working. This is how way it works for me: I think of a story line first , which may be  the hardest part, and I will progress from there.