I wish I could find some proper words to cheer you up right now. I'm really sad that you feel down. Trust me when I say I've had days such as this, when my parents' behavior towards me was rather harsh, as well as times when I have no inspiration to do anything.
The best piece of advice I can give you is to get some very needed rest, even off BZP if you feel like it. I knew how it felt for one's Art Topic to die (even if my last one had a mere 107 posts).
You're probably very stressed, but once you take a break, you can start on your work again. You'll have your inspiration back, trust me, it doesn't come when you force it. You have talent - you and everyone knows it, so don't let that bug you.
Also, you can try and ask Pohuaki for permission to revive your topic once you have some new artwork, I mean for Heaven's sake, it had more than 800 posts. Everyone would definitely miss your art. If that's unachievable, you can always repost your Art Topic. It really doesn't matter whether you have one or not. What matters is that everyone knows how good you are.
Just don't despair, OK?