Jakk, it's ok..I'm just like you too when I started continue to shoot more and don't be shy to try out new angle and camera settings. Push your gear ability to the limit.
A tip for you, pictures 3,4,5 I think you are trying to get a panning shot of the cars right? You can try to lower down you shutter speed to say 125 or 100. Since you are outdoor with bright sun set your ISO to 100. You can also put your camera setting to shutter priority. For starter, you can try shutter speed of 160 so that you still be able to get some clear shots. Also put your camera focus to continuous focus because the car moves and you need to keep panning the car from side to side.