Do you stand therapists? How?

Tomorrow I’ve got another appointment with a therapist, I didn’t want to but it’s the process to get on disability in my country. Last time I saw her I was freaking out after we talked. Explaining the hallucinations makes me sad, and they start to get stronger again. Talking about delusions is something I never do because I’m quite certain they will become reality if I do. Anyway, it always messes up with my mind.
Does anyone else feel the same? Or you feel like they help you? If they help you do you have tips on how to go about the appointment?