Should I move to Japan with a Sansei (Nikkei) visa or as a student?

I’m a 22yo man and a sansei. I’m thinking about living in Japan for a few years. Do you think I should go as an exchange student to improve my Japanese, since I only have the N3, or should I go with a Nikkei visa? I graduated from college but never liked the field. So I’m thinking about living in Japan for a while until I figure out what I want in life.