Spiegelwerk: in 21 dagen naar een gelukkiger leven

Her approach feels personal and accessible, but I'm curious what led her to develop this specific practice and how she saw it impact people's lives.

The 21-day structure is motivating, but I wonder if others struggled with consistency or noticed particular days being more impactful than others.

I’ve heard some say it’s life-changing, while others feel it’s superficial. Would love to hear experiences and whether it really helped with longstanding issues.