I just graduated last year (thank God) but I had a business class for two years where the main goal was to properly present in front of investors for a potential deal. We had to present in front of the class every week and sometimes in front of random classes. The final project for the class was to present in front of multiple classes at once in an auditorium. It was hell but it did help me to not get nervous as much. I barely stuttered towards the end of year