I wonder why your doc put you on invega, an expensive brand name medication, when risperdal is generic, and your liver converts risperdal into invega anyhow? Invega is what is called the first active metabolite of risperdal, but the drug company did the work in the lab, instead of your liver doing a perfectly fine job of doing this. Invega is a ripoff!! Perhaps you cannot afford generic risperdal, and the doc has invega samples, and in that case, invega makes sense. Otherwise, it has no significant difference from risperdal.
I never got good results from psychiatric medications.
If you are also agitated, perhaps you are getting akathisia, a very common side effect. because I did not visibly fidget, the docs missed the akathisia diagnosis, and I suffered for YEARS with horrible internal agitation that made me want to literally claw my face off or cut my chest open with a knife. They just labeled me borderline on top of bipolar, but it was a med side effect! I am still angry about this - for years they labeled me borderline and it was their damned pills doing this to me.
otherwise, you can keep trying. I have a lot of paranoia (according to the MMPI personality test) because of sexual abuse and I just keep using my cognitive behavioral therapy strategies, because meds don't work for me, but if you have schizophrenia, maybe that won't work.