Extremely high current in super simple SMPS Flyback
Here's a slightly shrunken version of your circuit with letters A, B and C in red on it: -




A - you HAVE (corrected, sorry) followed the correct dot notation for a flyback transformer. Good for you!
B - you have no load connected and you'll need a minimum load most likely
C - you have no mechanism to provide feedback control of output voltage to the chip such as this: -




I'm not ruling out that there are other problems but B and C are the glaring ones. I'm also unclear about what you are referring to when you mention letters A and B.