The psychosis with BPD is transient and in response to identified stressors. I don't think that's what they're referring to.

My T has referred to a particular negative belief of mine as delusional. Yes, technically a delusion is psychotic, but I don't think she's saying I'm psychotic. She's trying to call out how very much my belief is at odds with reality. The belief doesn't change no matter what evidence there is to the contrary. (the belief that I am a horrible person) The point is, I didn't get upset about whether she was calling me psychotic or not...I reflected on how strongly I cling to that belief no matter what, and I got her point that this belief is really getting in my way. And that it doesn't accurately reflect reality.

Isn't your belief that self injury will help, that self injury is a way to cope, isn't that a really strong belief? That you hold onto despite tons of evidence that it doesn't really make anything better and in fact makes them worse? Isn't that a delusional belief?

I don't think that makes you psychotic. But honestly I do think your thinking is really distorted right now.

I'm sorry if this isn't what you want to hear. I'm trying to be supportive and as gentle as I can be.