WaniKani teaches kanji, and vocab so you learn the different kanji readings.
It has example sentences, and has notes about a verb being transitive/intransitive, etc.
While learning a bunch of vocab is pretty useful for speaking…
It doesn’t teach grammar, and grammar is pretty important. 
Get yourself a book, there’s maggiesensei.com, japanesetest4you.com, CureDolly (from what I’ve heard), a bunch of Book Clubs, Japanese Ammo with Misa, etc.
Get some speaking practice, either shadowing, face to face, or online.
I can understand most of what I read/hear, but I have a harder time speaking because I don’t practice.
(Watch a bunch of series/anime so you get more familiar with how things are said, and can use phrases without thinking too much about it.)
Good luck!