From struggling academically to earning a Ph.D

Another inspirational story of someone who was determined and persisted in completing their educational goal... I'm envious! He's literally 10 years older than me but has so much more education! Well, let's see what 10 years will be like from now, I wonder...

He even has a wiki page: https://en.wikipedia.org/wiki/Calvin_Mackie
Link: https://www.msn.com/en-us/money/careersandeducation/from-struggling-academically-to-earning-a-ph-d-calvin-mackie-is-making-millions-from-biodiesel-manufacturing/ar-AA1bxR81