After a bit of discussion in the comments, he came up with his #1 writing tip and I share it with you here:
you do actually have to write something!
That may be where I've been going wrong.
Mind you, I am writing every day now but not for publication: my nanonovel is slowly emerging. I'm checking the word count every two hundred words, which is a bad sign, but I'm having fun with it all the same. The only problem is the plot holes which are piling up, if holes can pile up. Well, these ones are.
How is your writing coming along, presuming you do any? Or if you want to, just pop in and say "hi"!