No problem, funny thing is I struggle with that too, but I always forget to follow my own damn advice. Writing it out helps me too lol
I forgot to mention another thing, just like you should ask yourself what a character would be doing in a scene, you should do that with objects in the scene.
Example, if I think of a fantasy tavern I immediately think wood, tables, candlelight, beer mugs. But what other things would logically be in a tavern that I could use to make the space more believable?
Off the top of my head, some barrels in a corner, paintings or banners on the walls, a bar with people sitting at it, a staircase leading to the upper floor, cabinets with glasses and plates, unfinished food on the tables, playing cards for the patrons, shelves of various drinks and glasses behind the bar, a broom and cleaning supplies, chandeliers, windows, a sleeping dog, and so on.
Also thinking about where in the world the tavern (or any other environment) is located can help. Say for example that this tavern is out in the middle of the woods, it's a summer evening, and it's been raining. You could have mud tracks by the door and mud/water on the boots/clothes of your characters. If it's isolated there may only be a few people in it, and the decor may be more rustic (wood, stone, greenery, etc).
Just do some brain storming, it can help really sell a place and the characters within it.