It's a bit weird at first dude. I used to do that all the time. It kinda happens when you overthink it and tense up too much. Try bending your knees and arms a little bit to lower your centre of gravity and keep your Bodyweight central on the bike. Hope that helps.

your leaning to much to that side. try to level yourself out when you start to feel yourself falling. Also try not turning your bars so much. I hope those tips helped.

when you go to the ramp that you are using to start rolling back, do a hop before you start rolling back which will level you out, make sure the ground is level too and when you are about to turn to come out of the rollback, make sure the cranks are straight to make it easier so you don't tip to one side, hopefully this will help

Try focus on one bit of the bike as u do it