Compelling solution

In the “Narrowing your niche” worksheet, I can read: “What is your solution to their problem, and why is it compelling? (Example: I teach you how to drink less by reducing your desire to drink, not by using willpower.)”
What about the solution I offer to 25-35 French women in sales struggling with English? “I teach you how to improve your English by building up your self-confidence, not by only showing you your mistakes.”