Trust yourself to turn what you perceive as "crap" into something worth raving about.
When we start a new piece, we all often get the feeling that "this sucks, nothing can go right, I should just quit," and a lot of the time, we allow that feeling to overwhelm us and take over our imaginative spirit. We desperately need to rid our lives of this horrid nature. Overcoming roadblocks such as this will only help push us as artists and drastically improve our creative output. It's when we believe in our ability to create and innovate that we end up with something awesome.