The longer you wait the more difficult the situation will become.
The longer you put it off the tougher the situation will become.
どちらも「後になればなるほど状況は困難になる。」というニュアンスです。
1) The longer you wait the more difficult the situation will become.
the longer you wait 「長く待てば待つほど」
2) The longer you put it off the tougher the situation will become.
the longer you put it off 「長く延ばせば延ばすほど」
ご参考になれば幸いです！
日本 
