The singer says he has “let bitterness, jealousy and fear” run his life and that he now wants to start a new chapter. JUSTIN Bieber has shared a message on social media where he explains why he is “taking time” from his career. Two weeks after cancelling the remaining 14 days of his Purpose tour, the Baby singer has once again shocked his Beliebers with a surprise announcement. “I’m so grateful for this journey with all of you,” he wrote on Instagram. “I’m grateful for the tours but most of all I am grateful I get to go through this life WITH YOU! Learning and growing hasn’t always been easy but knowing I’m not alone has…