From experience
I once met one of my lecturers to discuss my doubt in teaching writing to ESL learners. At the end of the discussion, the lecturer stared at me and said, 'It's great that there is a student who thinks ahead of time.' After a long pause, I commented: 'I admit that English is very hard to be mastered. I was once an ESL learner and I found it very difficult for me to produce a good essay. I had received little guidance and I felt really stupid. I just want to help my students so that my students won't experience what I'd experienced'.