As I understand; based on what I know
私が理解する限り;私が知っていることに基づいて (Watashi ga rikai suru kagiri; watashi ga shitte iru koto ni motozuite)
"As far as I can tell, everything is fine."
"私が理解する限り、すべてが順調です。" (Watashi ga rikai suru kagiri, subete ga juncho desu.)
jealousy destroys one’s peace of mind
to be full of excitement and dreams about the future
To start something enthusiastically without hesitation.
learning by experimenting and correcting mistakes
too great or extreme to be described in words
both people involved in a situation are equally responsible