Important

[wannaknow]

What's wrong with the spoken statement. someone please help

'Mom. In here, you'll get everything to take care of me.'

[esltutor]

In and of itself, there doesn't appear to be anything wrong for a spoken sentence. Perhaps it could be wrong depending upon the context (what was said before or after this sentence was spoken) and/or what the speaker was emphasizing.

I might change the punctuation and write it differently like this: Mom, in here you'll get everything to take care of me.

Best,
Debra