I'm really sorry to hear your news. But as all the above comments, I think that sometimes you need to take a step back from it all, take a break and recharge your batteries.

But I know how you feel and you have my sympathies. I've been struggling recently with a fic of mine, weeks can go by and I write nothing and then when I do, it's rubbish.

I'm sure it's not half as bad as you fear and remember that we're all here to vent to. Do you have a beta? Perhaps they can help you sort it out and offer some moral support. Take care, :)