The first steps in learning to do a barrel roll while hooping is to not use your hoop. Get your chest at about a 45 degree angle to the ground and then rotate on a 45 degree access until your chest is 45 degrees to the sky. Pick a focal point, maybe a tree or the corner of your wall, then rotate again to get back to where you started. Now grab your hoop and get your hoop to match the angle of your body, turn, turn again and you’ve done