Sometimes I would last like 30 seconds, which was quite bloody annoying... just think of other shit, if your really into bringing your girl some pleasure, just don't look at her and go for it, go at a speed that you are comfortable with.. and just slowly increase..
It's hard to describe really, think of other things... a thing that I did with my ex was on the couch, I dunno why but it helped some how lol, she'd just lay down i'd get inbetween her legs and woot off we go, I also found that leaning on my right arm and grabbing the back of her head with my left arm helped too some how, I just didn't look at her face, I just looked up and picked a spot on the wall