Translation - Japonese-English - Koko ni aru no wa kimi ga ima made ...

Translation + explanatory notes:
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What is here (what remains) are the answers to (results of)
the choices you have made until now (lit: the "roads you have chosen until now")
Listen, you should have confidence and go ahead (continue living your life your way)
It's completely natural
The way a rainbow appears over the asphalt (i.e. the road) when the rain stops
A lonely wind blows