I wish there was a pamflet on understandung girls

Girls are by far the most complex creatures of all time. I don't understand them! I'm not even sure if they understand themselves! It's like everything I say or do to impress a girl backfires. When I compliment them, they'll most likely be offended for something. And they claim to like "nice guys", but statistics and experience shows that they do NOT care how nice you are. They only like you if you act better than everyone else and drive an expensive car! Which I don't have... So does this mean I'm doomed to be forever alone? if there was some kind of way I could understand their complex way of thinking I'd be better at this. I've even asked girls questions about this, trying to gather important info to improve my love life. But they never tell the truth when I ask. They just say typical things like "If you're nice to her she'll like you." Lies! if it was true I'd have a girlfriend! If you're reading this and have any information about the female mind, please share I'm desperate.