Tyler Posey will be the first to admit that he's had an "awful" year. A little more than 12 months have passed since the Teen Wolf star's mother died, a personal blow only worsened by the fact that it occurred mere months after his engagement to his childhood sweetheart ended. "This has been the hardest year of my life," Posey, 24, says in the latest issue of People.Posey had proposed to girlfriend Seana Gorlick in 2013 after a decade of being "in love," but the engagement had ended (under circumstances Posey prefers to keep private) by October 2014. "I still really miss her,...