A YT video on the Powershot would be helpful in explaining how a Powershot digital P&S works and what all the dials and buttons and menu items do, and to a certain extent would explain how the camera's particular functions and features would be useful in achieving specific types of shots, but I doubt that it would delve deeply into the actual basic underlying skills and techniques of photography itself.
For instance, when I bought my new camera body recently, I also purchased a couple of guides to it -- not to learn how to use the camera in general or how to shoot flowers or wildlife, but rather how to set up the camera body in different ways in order to optimize its usefulness in shooting flowers or wildlife, because this camera body is rather complex and there are many setting options for the user to choose from. Some can make a minor difference, others can make a significant difference.
Some settings one will establish just once and that's it, but many of them will be settings used in specific situations and the user can fine-tune everything quite nicely and designate customizable buttons in order to quickly access settings as needed rather than needing to dive into the menu in the middle of shooting. (These are settings which go beyond quickly going from single-shot to continuous-shot (Burst) mode or from manual focus to auto focus.).
The books I purchased offer suggestions for settings, and sometimes I've tried one, decided it wasn't working for me, and have tried something else instead -- there is a lot of flexibility built in. I've had this camera a couple of weeks now and am still tweaking settings! LOL! These books, though, don't offer instructions in how to shoot a macro of a flower, insect or small object, or make recommendations on the best settings for shooting wildlife in motion (while they do indicate and explain the settings available on the camera which include eye-focus for animals and birds and the various focus tracking settings which can be used for moving subjects such as BIF). For learning how to actually learn and hone one's skills in shooting macro of flowers or wildlife I have over the years used other resources, other books......
As AFB indicates in his post, it's not about the camera itself, it is about learning to use the various techniques and understanding the concepts behind light, composition, contrast, etc., and these are the elements which create and affect a picture's quality, not so much the camera. People here have been trying to illustrate to you how learning and developing these skills will improve your photography right now with the camera you've got..... You don't need a fancy new camera, you just need to learn to get the most from what you're using right now.