Your question really is: "Can you please explain photography to me". Sorry, given the number of books written on the subject, it's unlikely that could be done in a few posts on a forum.
1. Go to your library, borrow books which explain the basics of photography (the basics don't change whether it's film or digital) and learn what shutter-speed, apeture, and ISO/ASA mean, and how they relate to each other. Understand the impact of each on your images. A book or two on composition and/or lighting would be a good idea as well. There's lots of information on-line as well.
2. When your camera arrives, open it, remove the manual, put EVERYTHING else back in the box. Don't touch it. Read the manual. When you've read the whole manual, read it again. THEN take the camera out and start playing with it.
If you have a specific question, eg "What is the recommended shutter speed for taking pictures of ..." or "How do I achieve a softly focused background for my images?" those can be answered here, but broad 'meaning of life' type questions are really beyond the scope of this sort of venue.
Good luck!