If you are serious about learning photography start with your manual. It came with the camera. Sit down with the camera and the manual. When you read about something, try it on your camera. Then pick up a book called understanding exposure. Read that, and same as above, when you read a technique, practice it with your camera. By then you should have a working understanding of your camera.
And yes, its a good camera although I would have opted for a medium zoom for your first lens.
PS I pray that you are 15/16 and not just going to 15/16 year old girls