Would you sacrifice your dreams to go live so far away with someone you love?

I know this guy, we met in France he recently told me that he is planning to move to Japan for a long time… he’d like us to get married and live together there.
I don’t speak Japanese and I will be so far away from my parents, friends, everything I know…
I will have to sacrifice my career, my dreams, everything I fought for… for a long time.
I am so confused.. the first thing now popping into my head is: does he worth it?