Help!

I'm feeling restless, uninspired and frustrated today.

My revisions have come to a standstill somewhere around Chapter Three. I can't quite figure out which scenes belong in the chapter, or if I should write all new material.

Or if I should just scrap the whole darn thing.

Tossing the entire manuscript in a huge fire is becoming a very tempting thought.

Do any of you ever have thoughts like these? How do you get through it without ACTUALLY setting fire to all your hard work?