I would agree with Ceryni find a good tutorial and work your way through it. its probably the fastest way of learning rather than doing lots of small incomplete pieces.
One of the first projects i learnt was an orc head i found online somewhere turned out pretty well for my 1st attempt. I then did some environments and items to find out what i enjoyed making the most but definately spend more time on 1 thing.
- Big Tom
www.digitaltom.co.uk