I am a beginner photographer.

I have learned how to set the ISO and the white balance. I am learning about aperture.

But unfortunately, I do not trust myself whenever I have to take photos that are important, and inevitably rely on the automatic setting. (sometimes I have time to fiddle around with the camera - but for video for instance - it's really scary shooting with anything that's not automatic in case you screw it up)

I've been using the Canon Powershot A480 for my shots because it's cheap and easy to use. What suggestions do you have regarding 'fast tips" to make me more 'pro'.