Don’t get so busy planning and outlining that you don’t actually get the real writing done.
It’s not easy. We don’t pretend it is. We know it’s hard because we do it all the time. But because we have done it we know it’s possible, after all if a bunch of degenerates like us can pound our monkey brains enough to make the words that mean the things come out then anyone who has the will to do so can as well.