our new toddler alter is being the most dominant personality right now and it's making things difficult (it is also why i've not posted)

I don't know how to help her

she can't say what she wants, she has tried to learn words but she's not doing tha good with it.

I was told by someone who has seen her that she bites as well, and i'm not really sure how to take that

and like I say how to help her