Hello Matthew, and welcome to the forum.
By the way, you are not a "photographer wanna be". You have a camera, right? You have interest in photography, right? If so, then you're a photographer. The Canon Powershots are good cameras, 12 MP and ISO 3200, you can do some good work with that. (By comparision, my first digicam went all the way up to, get this... ISO 400. Yes, 400, not 4000)
Granted, you may not be as experienced as some of us, but we welcome everyone, no matter what your skill level. Ask questions, make comments, post photos. If you'd like a critique, post your photo and say something to the effect of "Please critique this", or "Comments wanted" or anything that indicates you want us to discuss your work. If you don't want critiques, that's fine too, they're given "upon request", so you can simply post photos to share them.
I hope you'll enjoy it here, and remember "The best camera is the one you have with you". So keep shooting with what you have, and learn and improve.