Saying that your hallucinations are still there isn't self-diagnosing. It seems weird that you reporting your therapist that you're seeing things is, to your therapist, something you shouldn't do. A new T might just be in order.

Therapists tend to tell all their patients to stop worrying about the diagnosis and self-diagnosing, as if they thought we "wanted" the diagnoses. We just want to know why things are happening.

As for thinking what you see is attacking you.. It indeed is a tricky situation. I'm still struggling with some "delusions" as my doctor say, and on some level I acknowledge that they are a bit far out but they are still controlling my life.

Hospital is a good option especially in your case.. No point in trying to cope on your own if you're not sure you can take care of yourself so that you won't harm yourself. Also, if you get your meds changed, it gets done much faster there.

Hope everything turns out okay. Let us know how you're doing