aubtaining a conservatorship for my daughter

The question is not whether your daughter needs protection but whether she has the legal capacity to provide for her own food, shelter and medical care and manage her own finances.  She may be intellectually or developmentally disabled, may have suffered a brain injury or may have a severe mental illness.  From your post, it is not clear.  Please talk with a local lawyer who represents people seeking conservatorships (as guardianships are termed in California.)