Well the therapist can give measures, make the person see things clearly but at the end of the day people have to do their homework to get the results. This is applicable even when diseases like obesity, diabetes, heart disease are looked at.

Instead of taking their lack of effort as a reflection of your inability, try to understand that you can encourage them to take baby steps, be accountable to change. There is a reason why many prefer a group class or trainer than exercising alone. The former provides a push and group pressure to do the necessary work.

Manage yourself better when you feel frustrated at their lack of progress. Understand that this will take more time.

Even with paid clients, find means to bring in accountability and to motivate them to find time in small slots. Will-power is a finite resource and is like a muscle in a static state. It needs exercise and rest to grow.