I am a hobbyist and autodidact, after first hundreds of try and with more or less fun I needed to read the Camera Manual Instructions - first not fun but at the end it helps so much!
And then participate to a photo community, (Renderosity) so I can learn from other photographers, what do they better... ? (learned even english for this!!)
at last its training of the eye and knowledge of hardware and software, the more I know the insufficient I feel ...;-)