It's typically difficult to leave behind something , but really welcoming the "next" is vital for progress . Don't linger on what's over ; instead, focus your energy toward what's ahead . This doesn't https://www.youtube.com/watch?v=N4FBtGP7zSs&list=OLAK5uy_kaqfjK_D00GAl1qeI8R1YmIE36j-RCLho&index=1