Matt LeBlanc turned into a recluse after vowing never to fall for the perils of fame which killed close pal Matthew Perry, according to insiders. RadarOnline.com can reveal the actor, 57, has maintained a clean-leaving life, smoking cigarettes being his only vice, ensuring he’s kept away from drug use so prevalent in his industry in order to protect his health and sanity. And when life does get tough, he takes himself away, like when he withdrew from the spotlight after his Friends’ spin-off was axed after two seasons in 2006. A decade after Joey ended he told an interviewer: “For years and ye…