do one’s utmost; go ahead; take care of oneself ? 望你～，…… (羅廣斌、楊益言《紅巖》553) I trust you will do your utmost.…/戴先生，你很聰明。鵬程萬里，～吧！ (楊沫《青春之歌》189) You are a clever man,Mr Dai. You will go a long way if you take care of yourself.
好自為之
behave (or conduct) oneself well;look out for oneself;do one’s best 你要把握時機(jī)，～。You must grasp your opportunity firmly and make the best of it.
好自為之hǎo zì wéi zhī
勸別人要好好地活（干）下去。conduct oneself well, do one’s utmost, go ahead