A practical exercise is take our camera (your simple camera or even a DSRL Reflex) and search your objective to be shoot. The objective doesn’t matter in this time, it is your practice model, it is “your friend” to take some photos and to practice your technique. Try different angles and keep in your mind the basics rules of composition. I’m sure that you’ll be surprise with the results of your images!
For the basics reference you can check the book Photographer’s Eye by Michael Freeman. It is a best seller! See it on Amazon click here.
So, don’t get afraid and keep shooting!
Also you can check some photos with interesting angles and compositions: