Oh ok, I see Lol!
@ Op
Make your self spend a whole day learning what each button does on your camera, read you manual, test your self by trying to change the desired settings as fast as you can until they become second nature, like white balance, manual focus points etc.
Then spend some time learning and how ISO effects light sensitivity of your camera and therefore changing this setting affect both Ambient light exposure and flash exposure.
Play with your shutter speed and learn that it only affects ambient light, exposure. Learn how to use it to blur the action or freeze the action.
Finally make sure you FULLY understand how the aperture works.
How it affects both ambient and flash exposure, and how it affects depth of field.
Later on you can learn how focal lengths and camera to subject distance that can be to affect the depth of field or make images look more or less distorted.
Once you have mastered that then you need to understand your lighting, don't even bother with TTL until you are extremely comfortable setting your exposure setting manually on both the camera and flash.
Once you understand the above there is allot more for you to learn, but at this stage you have enough knowledge to begin being creative and be able to produce work that is described as pretty good instead of poor.