Best wishes in your study.
Maybe you can start trying to pass the JLPT exam ( possible in multiple countries), starting by using the Minna no Nihongo or the Nihongo-Sou Matome series for each exam ( start with JLPT N5 )
Having a measurable goal (number of kanji, grammar points, vocabulary, ...) can be easier than "master japanese" . You can find free material (and classes) on http://www.mlcjapanese.co.jp/index.html
for example (japanese language school where i bought some of my kanji study books)
The Tochigi headquarters for Ki Society used to organise a year-long class of aikido, kiatsu (massage) and japanese calligraphy, maybe it can help you.
Good luck finding what will work best for you.