I came here to say similar things! This whole part of the story is one of my favorites… Tao Pai Pai, Master Karin and then Uranai Baba.
I am so happy with my increase in ability throughout the books. When I started reading Dragon Ball SD (several weeks before the club started), each chapter took several days and I had to ask my teacher about a lot of the conjugations and expressions. It was quite tiring. My goal was to be able to pick up the book and just read it.
Now, I can read it before bed and get a pretty good sense of the whole chapter and then there are a few words here and there and every now and then a grammar point. But, it is absolutely manageable. I don’t know if you’ve noticed this in yourselves. It seems like a quick evolution, but it’s been more than 6 months!