This tutorial is by no means a definitive guide, but it should help you with your tablet usage!
1 - First and foremost, don't be afraid of it. You need to use it. Every. Single. Day. Use it to browse the web for example. It'll help you get used to the sensitivity (practice highlighting sections of text), and all of the features of the pen. Some suggest that you should hide your mouse, so you're forced to only use your tablet! Through daily use, it should become an extension of your arm, and begin to move naturally.
2 - Play with it. Mess around with all of the settings your tablet has to offer. Not only will it help you find the settings you're most comfortable with, but it'll teach you what each individual part does. Also play around with it in your chosen drawing program (Photoshop / SAI / etc.), you'll learn more about your tablet and how it reacts to the program's settings (which may be different than what you're used to) - you're undoubte