Banana Pudding Trifle

cold whole milk

{3.4 oz.} packages instant banana pudding mix

bananas, sliced

heavy whipping cream

vanilla extract

powdered sugar

{12 oz.} prepared pound cake, cubed

{12 oz.} box vanilla wafers, crushed {As you can see, I saved a few whole ones to put on top, but you could crush all of them if you’d like. It’s up to you!}