You can make something of your lives.
君たちは人生から何かを達成できる
You can't lose.
((略式))どうしたって君の得だよ
You don't know the half of it.
君はまだ半分もわかっていない
You have (only) yourself to thank for it.
そいつは君の自業自得さ
You have a lot [everything] going for you
君は何もかも備えているじゃないか
You have done more than enough.
君は十二分にやった
You have doubtless seen it.
君はたぶんそれを見ているね
You have no business saying [to say] anything.
君には何も言う権利はない
You have nothing to be ashamed of.
君は何も恥ずかしいことはしていない
You have the skills to rise above all the difficulties.
君にはどんな困難も乗り越える技量がある