I just picked up studying this language about a week ago, and am having a lot of fun! I have hiragana and katakana under my belt, and have been doing my WK reviews but I find that between practicing kana and doing what little is available at my level here, I’m not able to fill my study time up with enough material. I try to put in 2-3 hours on weekdays, and will try to push for 4 on my days off. Other than reviewing kana and doing my reviews when I can, what else could you recommend me?
Sidenote: How much does it matter about when I do my reviews? If I’m not studying this, I’m either writing songs or coding, and, if I put my Japanese towards night time, it’s about time for work and I won’t be able to work on my reviews while I’m away. Therefore, I try to do them on daily, rather than in the per hour periods that they’re presented to me.