I think understanding how Wanikani works might help you understand how fast you can go (based on your experience so far). I wrote a Guide for Wanikani that talks precisely about this.
I also agree with others. Level 8 is still a bit too soon to figure things out. Lots of people still give up after level 8, after all.
For now I’d recommend reading chapters 1-7 of the guide, with a bigger focus on chapters 4 to 7
