don't make plans for something that might not happen
起こるかもしれないことを当てにして計画を立てるな (okoru kamoshirenai koto o ate ni shite keikaku o tateru na)
"You should wait until you get the job offer before you start celebrating. Don't count your chickens before they hatch."
"仕事のオファーをもらうまで待つべきだよ。卵がかえる前にヒナを数えるな。" (shigoto no ofaa o morau made matsu beki da yo. tamago ga kaeru mae ni hina o kazoeru na)
to present or explain a strategy or proposal clearly
something or someone that is difficult to understand
a physical separation between secure and insecure systems
a person's emotional condition
experiencing a period of bad luck
to start or continue doing something planned