When I get confused about whether something is real or not I ground myself; grab hold of the chair I'm sitting on and feel the fabric or go out into the front yard and watch the cars go by on the street or the squirrels/birds and use as many of my senses as I can so I know it is real. You can't do that in a dream, even a lucid one. I get grounded and then go do a "chore" like dishes, laundry, straighten up some corner of my pigsty :-) A change that I instigate and am in charge of usually gets me clear of any weird feelings of being controlled by someone/something else.