Learning how to expose a photo properly is NOT hard at all. It is probably one of the easiest things to learn in photography. If you think so, this article will show you that it isn't hard at all.
There are many different modes that you can expose in. The first mode is. . .
Shutter Priority Mode
This mode lets you control how long light is let into your camera. The aperture is then automatically adjusted to this length of light let in. This is the best option when you want to avoid blur or are in certain settings. For example, in very bright settings you want to use a shutter that is fast. Whereas a dark area would require a longer exposure for the light.
Aperture Priority Mode
This mode lets you control the amount of light that is let in through the iris of the camera. A larger iris means more light will be let in. This is good for scenes without much light like the shade or indoors. A small aperture is good for bright settings or scenes that you want lots of depth focused.
In this mode, the shutter is automatically adjusted to the aperture to properly expose the shot.
The manual mode is more complex. You must properly expose the shutter and the aperture. You need a light meter to do this properly. This is really not a mode to start using until you're more familiar with the settings.
This is just a start to the way to expose your shots right. Your main objective is a clear, photo that is lit properly.
Al Sanez has a Free Photo course that teaches beginners digital photography tips . He also has a Digital Photography Guide