A bad habit I can get into is thinking about a feature in terms of all it's parts and getting mentally stuck on starting trying to put the whole thing together

A bad habit I can get into is thinking about a feature in terms of all it's parts and getting mentally stuck on starting trying to put the whole thing together from the start. When as the advice in the article gives it is much better to focus on getting the critical path of a feature working. The mental block of thinking about the whole can easily lead to procrastination for me, something I am trying to avoid.