^ I'd say you're going somewhere when prideful defiance becomes one of your inspirations, xD It really is a helpful, motivating sentiment.

On the subject of inspiration, I find it useful to write without an expectation of a muse finding me, to write just for pleasure of putting words on paper and forming a coherent idea, nevermind if it's inspired or not.

I've discovered that finding that idea (or ideas) that I can thoroughly envision - that I can imagine myself exploring - works best when deciding what to write and what not to write, what to dump and what to keep. Does your current idea interest you? Does it motivate you to write it out, to make it tangible? Does the new idea you're considering present itself clearly to you, in such a way you can see yourself writing it?