That, kids, is what happens when you over-think things.
On topic:
If I want the same feeling, that weak stuff like thinking about small fights doesn't do a thing. I usually think about me being involved in some high-speed, violent car chase, where I eventually get on top of the car and fight off bad guys. Or maybe I picture myself in an epic battle with a dark overlord, saving a planet from certain destruction after killing it. Then there's a celebration all throughout the planet, and I am named a hero.
That kind of stuff gets my adrenaline pumping.