Sara Bareilles is finding “freedom” in accepting “flaws” as she gets older. The Grammy Award-winning star celebrated her 44th birthday earlier this week and has now explained that she is “allowing” herself to unashamedly embrace her imperfections and has found “liberation” in doing so. She told People: “I’m more impatient than I like to admit. I just have more flaws than I really think I should. And there’s something really freeing about just letting yourself be flawed, that if I put down the perfectionism, there is actually more liberation and freedom in that than shame.” The ‘Love Song’ hitm…