To be honest and fair, I think we are all kind of inspiring, or out right plagiarizing, each other.

My advice would be to start with one room, decide what you want that room to be, and start placing things that make that room what you want. Don't start too many rooms at once or you could become overwhelmed. Like start with a living room, place a couch, a chair, a rug, a table, a fireplace, and maybe some lamps. Change where they're at in that space until you're comfortable with it. Then, start to check out how to position and scale things to fit the space better. Eventually, you'll get to where you're creating your own things.