Tetra

http://www.rense.com/general60/tetra.htm
Maybe this will resonate with you. Give it a look-see. It is in British English and a "one-off" means a one time incident. We are in interesting times, and sometimes, especially women, blame ourselves when we feel punk, (aka not up to par). Maybe it is not you when you are going through things. I do not claim to understand this physics, but I do know that women tend to take blame when most often there are other factors involved.