During this talk, we will present the main steps to follow for a successful data science project, and also the mistakes to avoid for better Machine learning modeling. As this event is the first for our new chapter "GDG Leuven", we will present also the main goals of the GDG program with the planned agenda for the upcoming months. New co-organizers and speakers who are passionate about organizing tech events and giving a talk are more than welcome to join us to build this great community!