Im trying to figure out the household size of a sponsor. Ive watched many videos on it but I just want to make sure I am doing this right.

My mom is petitioning me. She is single and has no dependents all her children are over 21 years old.

Mind you I still live with her... Included in her household would be her (the petitioner)
and me (the beneficiary)
For immigration purposes her household size would be TWO right?

Does it matter that my half brother and his girlfriend and their daughter live in the same household?