Well its your prerogative to believe it or not or if my source was credible. However... I think gaming DID have an impact because I was calm, I wasnt panicked I looked at the situation the same way I face a new situation in a game, Evaluate and decide.
As for the blanket... it was to obscure my body so he couldnt see what body parts he was shooting at. I held it in front of me, but contorted my body in a C shape. There was one bullet hole in the blanket and had I just been standing behind it, it would have hit right around the right lung area. I was also considering using the blanket to throw at him for enough disorientation to get the jump on him, but by that time I was loosing a lot of blood and opted for cover behind a wall.
As for the shooter, he shot all the ammo he had. I guess given that he had a pillow to use as a silencer that 4 shots would be sufficient. Im guessing he thought he would sneak in and not wake me, but I was awake the second he opened the door. `He didnt count on me charging him, or even getting out of bed. So that is likely the reason why he retreated.
As for gaming, you learn from gaming what can be used as cover. With gaming It was easier to know what part of my room would make for the best cover available, whereas without gaming, I might have had to spend time I didnt have thinking about it.
So yes it might have been survival instinct, but survival instinct wouldnt have allowed me to be so focused and readily knowledgable of combat situations. So I still thank gaming, I thank the kind words of the people who posted, and Yes, I thank god for surviving such a situation.