make a plot. a plan of your story, for what you want to do with it, it doesnt have to be precise, and you dont have to stay true to it. But it's a guide line, so even when you're lost and dont know where to go next, you have a guide.
get feedback, there is nothing better at helping us to acheive our goals then getting peopl's opinions of what we've written.
I have been blocked for the past 5 months, i did have my bood (4 chapters & 15,000 words) up on writerscafe.org but i took it down as i was terrified someone would steal my ideas. but if you're only doing it for pleasure/hobby the i dont see why you cant put it up there. i loved hearing people's opinions of it, and what i could improve on.
i took it down, nad when i did, i just couldnt writ like i could before.
Now i'm getting a really good friend of mine to read over it, we do it via e-mail as we dont live close, but i trust her fully and know she wouldnt take it.
since i've started doing this, all my inspiration has come back to me, it's a wonderful feeling.
i really hope i've helped out in some way, and hope you get rid of your block, there is nothing worse for a writer to be bloked, it's almost a feeling of helplessness.
Good luck to you. x