There are a lot of great apps that help me. For absolute beginners, I think Human Japanese is the best, for pronunciation especially. But if you already know the basics, then for learning kanji I'd say apps like Midori or imiwa? are great. c: I wrote a notebook entry about helpful apps, so if you need more go check that out. There are also a lot of great YouTubers that help with learning Japanese. For grammar and phrases and the likes, Puni Puni Japan is pretty good. I hope these helped somewhat. ^^

I would suggest finding a Japanese tutor on italki to practice speaking with, if you don't have any Japanese friends in real life you can practice with. Textbooks are not really the way to go, since you won't have any chance to speak the language. I have learned Japanese for almost 8 years now, so if you ever need some tutoring or have any questions feel free to contact me, thanks!:)