There are a lot of functions on a modern camera, so take time to master the BASICS before you start mastering all of the functions. What do I mean by basics? (I cover them in my TIPS page)
EXPOSURE - Learn the effects of aperture, shutter speed, ISO and White Balance on the image.
COMPOSITION - Learn about balance and imbalance in a photo, leading lines, S curves, golden mean (ratio), the "rule" of thirds and when to break it.
DEPTH OF FIELD - What it is and how it is affected by lens choice and aperture.
MOTION - How to freeze motion using high shutter speeds, high ISO or flash. How to create motion by slow shutter speeds or panning or even deliberately moving the camera.
COLOUR - What colours go together well, how light intensity (temperature) affects colour saturation. How your camera sees colour. The use of tones in colour and black and white photography.
You cannot learn all of these things in one go. Learn, understand and master them one at a time. Take a photographic subject, concentrate on one skill and simply photograph it changing only one variable, eg. change shutter speed, change aperture, change white balance, change ISO, etc Once you have mastered one skill then you can move on to another.
Patience is a great virtue in photography, whether it is waiting for the right light, the right moment or learning the right technique. TAKE YOUR TIME TO LEARN THE BASIC SKILLS. They will stand you in good stead for the future.