Have you tried changing your subject? I'm a beginner and I find myself bored sometimes. Like "why even bother". I take a break and pick up my guitar and learn a new song. Do you have anythng else to challenge yourself?
Aww, am sincerely sorry to hear that happen. I know it's not uncommon for artists, but it doesn't make it suck any less either. Here's hoping you find your muse and motivation again sooner, rather than later, mate.