Before we start, lets make one thing clear. The best decision you can make when buying a hockey stick is to choose something you are comfortable with. No one stick is more or less suitable to a type of position or age.
Different mould shapes and construction types will help you do different things, evolve your skills and enjoy your game more. But be true to yourself, pick something you are comfortable with. If you are happy with the feel of your stick, you will relax and you will play better.