Awesome job getting started and wanting to learn more!!
Honestly, I think at this point, a little bit of everything is important. We have to know some words to be able to understand and use the grammar we are using, and we need grammar to use the words we are learning!
For vocabulary, I would recommend an app called Memrise. You can find all sorts of lists with useful vocabulary, and it’s free! I personally use the JLPT (Japanese Language Proficiency Test) lists because they have a lot of common vocabulary, and I am taking the exams. N5 is the easiest one, so I would suggest starting with that. Or there are many other general lists you can choose from too - just go with what works for you!
A beginner textbook is really useful too to help guide your learning. Again, I use specific JLPT ones, but I have used Genki a little myself, and it has good reviews from a lot of other people. You are already using pretty complicated English perfectly in your posts, so I think your English would be fine for the Genki textbook. It only has simple Japanese, and therefore the English translations are fairly simple, I don’t think you will have trouble understanding. But you can give it a go by looking at some of the online versions before buying. =)
If you can combine the wankikani kanji, memrise vocab, and grammar book, I think that is a fairly awesome start that shouldn’t be too overwhelming. After that, you can probably introduce the listening as you learn grammar points. Most textbooks will come with a CD, or you can probably find some exercises online. =)
Sorry for the long post, just love encouraging learning!