The only reason YOU need to think you're good looking is for the purpose of self confidence. Apart from that, girls have different tastes. Take Vin Diesel. I've heard someone say he's the most beautiful man alive, and another say he looks like a gorilla. Not every girl finds Brad Pitt or whoever good looking. I dont care how good you look, some girls will be attracted to you, some won't. In my lifetime, I've had girls falling all over themselves. Sometimes to talk to me, sometimes to run lol Beauty is in the eye of the beholder, thats why you have to take your chances when you think "I'm probably not her type" or whatever.