I seem to be the casual writer, and there is nothing wrong with that. Important thing is to be able to fix some time an really write something in the semi-regular basis. After all, I'm the semi-regular runner as well, but I still run more then the average person.
Never give up in trying to be better then you are. This is very christian attitude as well. Nobody's perfect. It doesn't mean you don't have to try - over and over - to be.
I have transferred it to my "productivity fitness" - sometimes I fall off the wagon, fell bad about it and stop trying.
This is wrong.
To be honest, even the brightest do that. Look at Merlin Mann - probably the most educated guru in things modern productivity. He was not been able to finish his GTD book. For what reason? Nobody knows. He - less the then anyone. And one can feel, how down and out he was feeling, when he realised he could not do it.
And although Merlin Mann failed this one project - he did not give up on the whole productivity philosophy. On the contrary. He learned from his mistakes, allowed himself to try new things (Back2Work), allowed himself to drop many projects - like his famous blog 43 Folders.
After all, the productivity is a toolset, far more important goal - is to be defined by you. What do you want to be? What can you achieve? What greater goals are still in your vision?
GTD will not answer these questions for you, you still have to think, decide on next actions and projects. What GTD will help you with is inventory. It will help you park the results of this thinking, so that you don't have to do the same thinking over and over again.
GTD is simple efficient toolkit to manage your thoughts. It's not even about your actions and projects. Those action lists, project lists, context list, waiting fors - these are no more then the verbalised thoughts. Brought together, organised in the logical buckets, so you can easily keep track.
The thinking is the key.
You have to think. More then you used to, but less then you're afraid you must
This phrase coined by David Allen in my mind represents all the essence of GTD.