I started to write a much longer response but don't have time. My IQ was tested at 142 some decades ago and, from what I've read, would be higher cause the tests have changed.

I was always very successful in my jobs but, when it came to starting my own business, I needed a lot of active encouragement or I would give up too quickly. However, in two cases, a business clicked with me, for some reason, which made me excited and driven. While others commented on my innovative approach to those businesses that made them successful, it was the enthusiasm that kept me going, followed by the excitement of success. You might say it's the difference between being a good player on a bad sports team versus a good player on a first place team. My IQ, perhaps, helped me see things most did not but it's the enthusiasm that keeps me going and, especially helpful, encouragement and support from others, not my IQ.