Environment
Circumstances
noun
The treatment of your boundary of your neighborhood is something you should be concerned about, because it's your environment and if you don't take care of it, who will?
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
自分の不幸を境遇のせいにするんじゃない。
You can’t blame your environment for your own unhappiness.