I'm glad that you already know a good deal of vocabulary :) But, if you want to get better/become fluent in Japanese, you should also study grammar, and kanji. Here are some sites that you can use: http://www.jlptstudy.net/ (for studying Japanese Kanji) https://www.erin.ne.jp/en/ (for studying situational conversations and dialogues) http://www.guidetojapanese.org/learn/grammar (for studying grammar) https://www.memrise.com/ (for interactive learning) http://ankisrs.net/ (for flashcards/for reviewing what you have learned) If you want to practice your reading skills, you can use Japanese manga/children's books/magazines. You may also visit: http://www.nhk.or.jp/ I hope that helps :)

Personally, I would start learning grammar structures and some kanji too. Once you know basic grammar you can start building proper sentences and stuff