Girls, good day to you all! Please share your experience of "self-hyp…

Girls, good day to you all! Please share your experience of "self-hypnosis" during pregnancy. It's already 33 weeks, and such awful thoughts creep into my head: "what if something happens/I don't deliver/the baby doesn't come/there will be complications". I try to push them away, set myself up for the positive, but still sometimes some nasty thought creeps into my head. Has anyone had this happen??