This was a very timely post for me. For some unknown reason, my critical faculties became much more finely honed recently and, as a result, the beginning of the novel that I'm supposed to be writing looks like utter dreck.
It isn't, actually, it's perfectly adequate -- it's just that "adequate" is no longer good enough to satisfy me. But I've been letting these feelings stop me from writing, and I shouldn't do that. It was good to be reminded most forcefully that an artist is not usually a very reliable judge of the quality of their own work. :)
Once I am rid of the time-consuming and tedious commitments that are bogging me down at present, I will grit my teeth and plod on with it. It probably isn't half as bad as I think and even if I end up with a wrong draft, it's better than having no draft at all.