If you want advice, lower your mouse sens. It's way too high, your camera is very very jerky there when it should be smooth. And yeah, clear case of you releasing block too early, happens.
Apart from the jerky camera movement because of too high sens, you're not actually being too frantic like some people say. If you want to go for a hyperactive playstyle (this ain't even it, though) you need to have control, which you clearly lack.