Jelle (46) wants to start his own business, but he keeps procrastinating. He has great ideas and wants to be a keynote speaker and write a book about it, but he turns blank when he starts to write. What's holding him back?

Do you also have a personal problem and would you like to discuss it with Berthold in the podcast? We would love to have you as our guest! Click here for more info and the application form.

This year, the best-selling tear-off calendar in the Netherlands is also available in English for the first time! Order here: www.omdenken.nl/calendar.