I think all creative types at some point feel like they're a no-talent hack. They feel unoriginal. They feel derivative. They feel powerless.
Something I try to remind myself (and others) is that when you feel powerless, or the overwhelming negativity starts to creep in, stop and say "If I can't do something well, at least I can do something good."
Sometimes that's as simple as adding someone's work to your favorites folder or leave a comment.
Let's be honest, we all love it and there comes a time when we all need that boost.