Clear, instructive formation in Yoga Nidra

It’s a few months now that I train myself to practise yoga Nidra as a yoga teacher. I’ve first read a lot and learn from videos and books. But it wasn’t enough to make it completely clear for me. I have really appreciate this formation between practises, courses and possibility to ask questions, when you don’t understand, to a teacher. It was really great. I highly recommand.