Rocket League: Platinum today?! [500 YouTube Subs!!] 

The reason that you keep missing the ball on the wall is because you're going too fast on the touch and not reading the bounce. Huge tip - get close to the ball quickly, but slow down once you're close to it. You have way more time than you think. If your opponent isn't on top of the ball you should slow down enough that you can dribble it. You want to give yourself more space than you think you need at first. It's way easier to judge the ball when you have that space and your car isn't moving super fast. Slow is smooth, smooth is fast.