However, this point is crucial: The growth mindset does allow people to love what they're doing — and to continue to love it in the face of difficult… - Carol S. Dweck

The idea of trying and still failing — of leaving yourself without excuses — is the worst fear within the fixed mindset, and it haunted and paralyzed her. She had even stopped bringing her violin to her lesson!

It is always useful to ask: is there a more interesting way of doing this?
But sometimes the answer may be no. It is then that people need to learn to apply themselves: when there is a painful process or nothing of interest to learn from the task. This is where ‘self-regulation’ comes in. These are essential skills that we use to help ourselves when tasks are long, complex or unpleasant. These skills can be taught, and students who have mastered them do far better than those who haven’t, both in the short run and in the long run.

There is a French expression: “Tout comprendre c’est tout pardonner.” To understand all is to forgive all.