Just had a quick look at your "high pull".
You are going to have to start again from scratch! The arms should not be involved in the movement in any way other than some dangly ropes from which the barbell hangs.
You should jump and force a very violent hip extension and shrug, this should make your plates rattle and the bar "float" weightlessly to shoulder height. Currently you are reverse curling it! Jump & shrug so hard, that if you let go of the bar it would hit the ceiling. Do NOT reverse curl it.