Blue-eyed Cockatoo not stepping up!

[JacobBird]

Hey! My Blue-eyed Cockatoo always sighs when I approach him but he can eat from my hand, let me touch him and he knows how to target train. The problem is that he is not stepping up. When I place my hand in front of him, he just walks away. Another thing i tried is placing my hand on the side of the perch so that he can glide his feet to my hand. He walks to my hand and touch my target stick and I reward him, but most of the times he steps back to the perch. After like 10 times of doing it on every session, he starts to chew the treat on my hand but if I just stayed there and didn't give my target stick, he would just step back to the perch. When I try to lift my hand up away from the perch and didn't keep giving my target stick and treats, he would just jump and fly to the perch. I've keep trying placing my hand in front and push his chest so that he feels imbalance but yet it doesn't work. Please help..

[Pricey_boy]

Put bim in a stressfull situation
like on the ground it or a new perch or area or near a bird he doesn't
like so he's in the position where he'll step onto your hand and than reward him with his favourites treat most birds prefer sunflower seads but my long billed corella (Long billed blue eyed cockatoo) prefers almonds ir scratches every bird
feels
uncomfortable somewhere find his spot and he'll step up