Knowing the boundaries of our capabilities is one of the most difficult challenges we face as developers. The short answer is that it comes with experience. Learning to say ‘No’ and following your instincts will come more naturally after you’ve actually experienced the failure of a few endeavors.
Rafał Filipek on
September 29th, 2009
‘No’ is very important and hard to learn. Fortunatelly I do not have problems with that. My most frequent stops at 95% due to the fact that the project is almost finished. There are no challenges, no interesting elements. I don’t know whether it included in your problem but I have always been lacking in motivation to complete the project (the last 5%).
Comments(4) 
I’m still struggling with this. Any advice?
Overestimate, under deliver.
Knowing the boundaries of our capabilities is one of the most difficult challenges we face as developers. The short answer is that it comes with experience. Learning to say ‘No’ and following your instincts will come more naturally after you’ve actually experienced the failure of a few endeavors.
‘No’ is very important and hard to learn. Fortunatelly I do not have problems with that. My most frequent stops at 95% due to the fact that the project is almost finished. There are no challenges, no interesting elements. I don’t know whether it included in your problem but I have always been lacking in motivation to complete the project (the last 5%).
I agree with Rafal, I often find myself almost complete but lacking the desire to touch the project and complete the remaining 5%.
I have noticed it it usually when it seems like the last remaining steps are going to be simple and then I halt.