Can Mixing Marijuana And Risperdal Cause Permanent Brain Damage? I

Can mixing marijuana and risperdal cause permanent brain damage? I was smoking pot and taking risperdal and it would give me a really intense high. Now I have severe memory loss and confusion. I cant even watch the news without being confused the whole time. Now cigarettes make me disorientated and confusion gets worse almost daily. When people talk fast I cant comprehend what they are saying. I also have moderate cognitive decline. Do I have permanent brain damage?