I know it sounds crazy but this short podcast will reveal what I mean. 
When you have  a plan thats great, but then those thoughts creep in  - like this is too hard, it's taking too long and so on.

But if you are quiting smoking aren't those cravings proof your plan is working?
Aren't those painful sore muscles proof you are exercising and the wekaness is going away.

Hope you enjoy the podcast - see the video on my blog at Think and Planning at the same time (NLP insights) - The Real Paul Turner