I learned pretty much all my grammar from Minna no Nihongo. Since you have the grammar companion, you should be fine, though I am not sure how well it explains, since I am learning with a teacher.
If you can, try to do Renshuu B native language->Japanese as well, by translating, and revisiting a couple days or a week later. I feel like that will really help you generate your own sentences using the given structures. That’s how we usually do it in class.
Renshuu C will be tough to do on your own, but it basically a fill-in-the-blanks exercise without a partner.
Don’t skip Mondai and listening. And the Fukushuu is really helpful, if a bit boring and painful, if you haven’t got the grammar down perfectly, yet. My teacher likes to call it 復讐 instead.
PS: skip the part about pitch accent for now (with the weird red lines around the kana). Though interesting, it won’t help your grammar if you try to learn that at the same time.
There are also some Minna chapter by chapter wordlists on Memrise (I know of Dutch ones, but probably also in English?)