Stop thinking about what others think of you and live by your own standards!
"相手にどう思われるかはやめて、自分基準で生きなよ！"
- Stop thinking about what others think of you and live by your own standards!
「相手にどう思われるかという生き方はやめて、自分基準で生きなさいね！
- Stop living your life based on what others think, and live by your own standards!
Don't let other people's thoughts determine how you live your life. You should march to your own drummer.
この場合、次のような言い方ができますよ。
ーDon't let other people's thoughts determine how you live your life. You should march to your own drummer.
「他人の考えに、あなたがあなたの人生をどう生きるかを決めさせないで。自分の道を行くべきだよ」
to march to one's own drummer で「自分自身の道を行く」
ご参考まで！
アメリカ合衆国 
カナダ 
