Hello Erecura,
It sounds more like anxiety to me, because deep down you know that these thoughts are not logical. With delusions you are 100% convinced that the delusion is real. Anxiety can definitely mimic psychosis though...I've had experience with both so I'll post a couple of personal examples:
ANXIETY - I used to get intrusive thoughts that I would kill others. Although I knew, deep down, that it wasn't in me to do it, my anxiety fueled the intrusive thought and made it a much bigger deal than it was. These thoughts led to my first 4 hospitalizations - anxiety is no joke!
PSYCHOSIS - During a manic episode, I thought I was God's chosen one and that I had to end my life to join Him in heaven. I was absolutely convinced of it despite nobody else believing me.
Similar, but the key difference is in anxiety you are not 100% convinced. Both can be very hard to endure though, and I'm sorry to hear that you are struggling.