I truly believe my brother has a paranoid behavioral disorder. How can I get him the help he needs?  He is currently taking meds for anxiety and Atavan.  He has begun the process of counseling however he continues to suffer major meltdowns daily, not able to be alone, maintain a job and daily living skills are difficult for him.
He may have a psychotic illness. However, reaching to a diagnosis and treatment plan need more information about his behavior and illness and interviewing him. Get back to me with more information like duration and nature of illness, does he talk to himself, more details about his suspicious behavior, how does he spend his day at home, any addiction? Etc. You also consult a psychiatrist in Lois vicinity as interviewing the patient is key to make a decision.  Chat Doctor.