Personally I prioritize learning grammar over vocab. I feel it's a lot easier to acquire vocab once you have a decent grammar framework to slot words into, beca

Personally I prioritize learning grammar over vocab. I feel it's a lot easier to acquire vocab once you have a decent grammar framework to slot words into, because it means you can practice and retain words much more effectively. For example, you can then start reading prose much earlier, because all you need to do is look up words in a dictionary - since the grammar training has equipped you to glean tense, relations, and so on the two combine to give you the meaning, so once you have grammar down you can read almost anything with the aid of a dictionary. And when you learn new words you will know immediately how to use them (e.g. conjugate them) correctly, and the immediate application will make them stick better. (I'm currently learning Korean, where e.g. properly conjugated verbs are immensely powerful information encoders, and also serve as adjectives. Grammar is indispensable there.)