Why such a terror of the fictionality of fiction? Relax. There’s no need to feel ashamed. No one is going to find you out. They already know. That’s the contract. The whole job is to make a pretence. If you can write, you can get the reader to immerse. There’s no need to be so desperate to encourage suspension of disbelief. Voice will do it. A couple of details will do it. There’s no need to present yourself as a holiday destination. No one really believes these alien planets you invented are actually there; to be honest, no one really believes this bus station you drew so painstakingly from life is actually there. No one thinks the worse of you because you are just another human being telling a story. That’s why we look up suddenly in delight in the pub and say, “You’re having me on!” I’d rather pile up real facts to reveal something evidently unreal than pile up invented facts to make something unreal seem real.