Irrefutable fiction writing advice: I know what you're going to say— there is no such thing. It's true that writing fiction is a very individual undertaking. Each writer must find his or her own method for writing a novel. This starts right from the start when you make choices on pre-writing and on daily approach and so on and so forth and forth and forth. It is important that you experiment with different methods if you're new to writing to find what works for you. Find what works and work it.
BUT I DO HAVE SOME IRREFUTABLE WRITING ADVICE FOR YOU: Write from wherever you are. When I'm at home, I write at home. When I'm somewhere else, I write somewhere else. Trying to write from where you are not will just lead to disappointment.