You can sense the angle of bank of an aircraft from the ailerons and the feedback you get increases with increased lateral stability
You need to kick that into touch now. Its called flying by the seat of your pants with no reference instrument or visual.
It has killed before and will kill again many a time. Any instrument instructor worth there salt can put you into an unusual attitude and you won't have a clue which direction you are turning (actually that's a lie it will be the opposite one than you think).