Many teachers seek clarity in their working lifes and tend to over-rely on binary decisions, either creating binary decision-points, or regarding situation as binary decision points.
Rethinking this can help you to avoid stress.
A binary decision is one with only two outcomes: YES-NO, ON-OFF, BLACK-WHITE.
In a teaching or work context, binary decisions might include:
to do a task or not to do it
to do something well or not to do it at all
to do things by the book or go your own way
In fact, none of these decisions are really binary: there are a million midway points between doing something and not doing it at all; likewise an infinite number of steps between doing something well and doing it poorly, between 'the book' and 'my way'.
It is important to realise that you - as a teacher - always have more choices, and more control than you realise. TM4T emphasizes efficiency, and offers illustrations of quick and effective ways to carry out everyday teacher-tasks. These are not techniques which should be used invariably and persistently - the intention is that you vary your way of working - you choose your way of working, depending on circumstances. There is always a way to do something quicker, and there is always a way to do something more thoroughly. What you, the teacher, need to do is to select the most appropriate way of working in each circumstance. You should, though, have a defaut - efficient - way of working which you can instincitively deploy when times are busy.