Aside from trying to translate idiomatic phrases literally being a huge mistake, you seem to be thinking that kanji are always words in and of themselves, which is also a mistake.
For example, "self" is 自分 or 自ら or 自分自身, not 自. Also, "company" (the kind people go to to do work and get paid) is 会社, not 社. Note that the reverse, 社会, means "society."