poor employee value - Avaliação de funcionários no cargo de Funcionário(a) sigiloso(a) na empresa HAS

Not treated as a valued employee. Being yelled at by managers. Work created by me is being taken an utilized by management as their work. Not being included in the knowing what is going on, even when it is specific to my position. Being treated as if I don't know my job when I know more than my boss. I don't want his job, just want to participate and be part of the organization.