to not worry about something until it happens
起こるまで心配しないこと (okoru made shinpai shinai koto)
"We’ll cross the bridge when we come to it."
"それが起きたときに考えよう。" (sore ga okita toki ni kangaeyo)
to be an example that others should imitate
to cause trouble or create a significant impact
to quickly assess someone or something
something that has both positive and negative consequences
a young or innocent kind of love
feeling hopeless and defeated