Start learning your Japanese now, to be ready for the 2020 Olympics, and enjoy the culture of Japan! As a Bonus, learning Japanese also teaches you Chinese Kanji for 2022 Beijing Winter Olympics! Make sure to make use of the sites below:
For learning Hiragana, Katakana & Kanji beginners: Tofugu’s guide
For those who need to practice (More than just Japanese!): Real Kana Language learner
For advanced readers, and Chinese Kanji: Kanji Grammar
For a comprehensive guide, use Memrise, who offer courses for almost any modern language, and have a special page of common phrases to get you ready for the 2020 Olympics: Memrise Japanese
Get practising, and see you in Tokyo for July 24th, 2020!