I'm interested more about the clinical psychology of deadlines and how they relate to personal industriousness, discipline, and motivation.

Having been a part of a team that had to meet a very hard discipline in my working life as a pharmaceutical chemist, I thought it would be worthwhile considering how to incorporate similar hard deadlines into my private working life.

I'm interested in learning more about how what I deem the 'war mentality' can be harnessed in personal pursuits. The at-any-cost feeling of having to work hard to hit a deadline is obviously very hard to implement in one's private life, where it's obvious that such created deadlines are 'artificial'.

Is there any research into how one can "convince" yourself that artificial deadlines are real deadlines to the extent that you'd pursue them with similar vigor? Apologies if the question is too vague, but curious if anyone has interesting readings/experience with setting these sort of deadlines to whip yourself into discipline.