Why inspiration is problematic to me

So Iv'e been watching a lot of Supernatural lately. (Speaking of which, an alot of Supernatural would be pretty cool... hyperboleandahalf.blogspot.com…). When I find a show that I like, I have a habit of eating through the entire series as quickly as is (un)reasonably possible . So I've been watching SPN, and it's all full of angels and demons and Christian mythology, and that's renewed my interest in last year's NaNovel, big time. I've been reading the Bible (Revelations, man, that is some...really, really weird stuff let me tell you) and researching it again, and I keep thinking up all these ideas and I feel as if I just have to work on Soul /right now/. Of course one problem with this is that I don't really have the time and focus to be working on any novel right now, what with sewing myself silly prepping for an upcoming craft fair and trying to make a crapload of Christmas presents, but the even bigger problem is that I'm working on my Arthurian retelling now. I was immersing myself in Arthurian literature, thinking about the plot and characters all the time and writing non-stop all through November, and now as soon as the month ends I get myself sucked back into a project I'd given up on. Which is great, it's awesome that I have the inspiration and drive to work on it again, but...but...but...
So that's why sometimes inspiration kind of sucks a bit