Ah, yes. That explains it.
I recall translating a fanfic from chinese once, and the term "bend like a shrimp" came up. 😂
It is a mysterious language indeed.
If you want my suggestion; Get Grammarly.
I use it to proofread my fanfiction and short stories.
It help catch grammatical errors as well as spelling errors, and it's free.
It's not quite a beta reader, but it might help you out a bit.