How to turn home sharing off?

I have an Ipod 2nd Generation & my mother has an iphone 4S she gets everything i download on my ipod on her phone and i dont like that. How do i turn it off?

You currently have one of two conflicts

1. You have a shared iTunes Apple ID with your Mother.

- Solution: Create a new account with a linked credit card for your iPod 2G

2.iTunes is asking you to Authorize an Apple Account for your Computer,

- You can just de-authorize all computers, and then re-authorize your own computer from iTunes.

- NOTE You have to De-Authorize your mother's Itunes as well