In my writing, as much as I could, I tried to find the good, and praise it.
Never sell yourself short. Writers are notoriously neurotic (present company included). This means that we alternatively love and hate everything we write. But before you go off bemoaning the utter lack of writing anything comprehensible, be sure to seek out and commend yourself on the jewels that lay hidden amongst the rubbish. Enjoy the moments of greatness even if you don’t believe they come often enough.