Quiddich, Main, or Side Quests?

I'm in year 3, chapter 6 (part 4 of 5) and I'm getting super overwhelmed with literally EVERY thing I have to do. I ended up semi-rushing year one and two and only did the professor appreciation and diagon alley TLSQ. Im on quiddich season one part 4 (right after Murphy teaches his technique) and the only magic creatures quests I've finished is Niffler and Bowtruckle. I'm not sure what to focus on right now because there's just so much to do 😭 I'm at level 10 with Rowan, Ben, and Penny, and spending a lot of books at the library to level up with the others. Where should i focus?