Welcome to the beginning of your journey behind the lens. Photography, at its heart, literally means "writing with light" (from the Greek phōs and graphê).
As a Sec 3 art student, you are moving beyond simply taking "snapshots." You are now learning to intentionally capture moments, moods, and perspectives that only you can see. The Nikon D3300 in your hands is a sophisticated tool designed to help you translate those visions into reality.
Here is everything you need to know to get started.