No problem! Yeah if you were to do this drawing again, in one point perspective, pretty much all of the lines would either be vertical/horizontal, or going to the same vanishing point. You can basically just make a big X shape from the corners of the "paper", and use that for the edges of the floor/walls, then make the lines for the couch/fireplace/rug/table go towards that same point. The angled tv stand is trickier, check out the videos on using multiple vanishing points for that (Term 2 I think), Marc explains it far better than I can haha.