Dr. Alok Kanojia is a 39-year-old Harvard-trained psychiatrist and CEO of his own successful life-coaching company, Healthy Gamer. But to almost a million YouTube subscribers and over 600,000 Twitch followers, he’s “Dr. K,” the host of HealthyGamerGG, a mental health platform he designed to “help the internet generation succeed.” Kanojia’s company and platform are informed …