For the beginning half of this Japanese Class, I was able to understand all of the grammar pretty well. I struggled a little bit with A 時 B, but I was able to study well enough to understand it.
I was also able to know which verb form to use for what piece of grammar (te form, short form, etc.) In order to do this, I focused more on examples rather than brute force memorization. I think it really helped to make the language feel a little more natural.
For the latter half of the class, I intend to keep this up in regards to grammar. However, I need to put much more focus on memorizing vocabulary and (especially) kanji. Kanji has always been very hard for me, but I will still try to do my best. However, there is no excuse for not being able to memorize vocab. I simply need to put in more time to studying these things specifically than before.