By Emilia Randall A YouTube millionaire was forced to quit his social experiment designed to prove anyone could become rich fast after his health started seriously declining. Mike Black wanted to prove anyone could make$1 million (£808,000) in just 12 months but fell short of his goal, quitting the project after 10 months having made just $64,000 (£51,700) because “health and family come first”. Mike cited his two autoimmune diseases which caused “chronic fatigue” and joint pain as the cause for him retiring from the project and bringing “to light” what truly matters, “health and gratitude.” M…