The Below is a list of some of the signs of psychological abuse.
Although not extensive, these are just ones I have experienced from organisations including Priory Group, Onside Advocacy and local authority.
Identifying these sooner may help you before it is too late.

Threats
Monitoring whereabouts
Unilateral decision-making
Lecturing or direct orders
Feigned helplessness
Denying something you know is true
Goading then blaming
Denying their abuse
Accusing you of abuse
Trivializing
Destroying and denying
Trying to come between you and family
Actively working to turn others against you
Indifference or apathy
Shutting down communication