The secret to learning anything is to read it over and over again.
I don't expect everyone to make websites, but maybe a diary or scrapbook or something. Copy and paste what strikes your fancy and correct the grammer, move things around. Cut them up and rearrange them. Anything that makes you read the posts over and over again.
Suddenly you will see patterns and you will see the same thing said several different ways and you will be suprised at how much you understand.