Don't forget, reading/writing do not easily translate into speaking ability. The JLPT does not test for speaking at all, just listening. If you neglect language exchange and conversation opportunities then you'll end up like half of Japan, able to read English but unable to speak and in dire need of conversational coaching.
If you have to take time off and Japanese becomes a hobby for 1 year rather than your major area of guided study, I would continue the process by self-studying at home and keeping up on the grammar, but, perhaps embark on a journey (if you haven't already) to find real Japanese people visiting/living in your immediate vicinity who wish to language exchange.