I want to live in such a way that I don't throw away anything.
I want to live a life in which I do not produce useless things.
ご質問ありがとうございます。
①
"I want to live a life in which I use up things."＝「私は物を使い切る人生を生きたい。」
②
"I want to live in such a way that I don't throw away anything."＝「私は何も捨てないような生き方をしたい。」
③
"I want to live a life in which I do not produce useless things."＝「私は無駄なものを作り出さない人生を生きたい。」
ご参考になると良いです！
アメリカ合衆国 
