This can be a huge distraction from our creative lives, sure. But something almost more insidious begins to creep in. Unintentional imitation. Let's face it. We all do it to some extent. It could just be our influences working together to give a certain flavor to our work, or it might be an all out rip off (you know who you are). The point is, when creation becomes more like imitation, we aren't really talking about being creative anymore. We're talking karaoke masquerading as the original.
So, assuming that we want to act as truly creative individuals, we need to find a way to free ourselves from our standards for ourself.
Think about your standards for a completed work. Chances are, you developed those standards through one of two ways. One, you had a teacher who dictated to you what a completed work was and what it wasn't. Or two, the people that you admired when getting into your art somehow left an impression on you as to what a complete and quality piece of work really is. Either one is perfectly functional and useful in our work.
But I want you to ask yourself, have you ever tried to create something without giving a thought to what other artists (teachers, inspirations, heroes) would have done? Have you ever let the work be true to it's self, let it speak in it's own voice and sing until the last note is finished? Have you let it have it's own inherent quirkiness and flaws?
It takes skill to let a true work go from inspiration to creation. That's what the fundamentals are for. Then, forget everything. Let the idea sing. Go right when it says to go right. Hold the chord when everyone else might change it, because that's what the song says to do.
Open your heart, your mind and your eyes to what is being presented to you in the form of inspiration. Then create that. You'll never need to "play karaoke" again.