You can be just as creative, you just don't feel creative. I notice that since I have less negative feelings in my life I can focus more and get more done creatively. Negative thoughts aren't pining away at my heart strings. I use to ruminate a lot and now its rare when I do. I do not know if I would have been able to write a book if I had all those negative emotions swirling in my head... Who knows. All I know is that I can't risk another psychotic break from reality so I stick with my antipsychotic.