Baby girl, they are mostly shag searchers on dating sites. You'll be lucky to find a man. It happens but you have to go through loads to find one. If you are being told "you're like my little sister" you are actually being told "you're not my type". Which just means the guy isn't for you. Same with the other statement.

I believe boys are, in general, unable to approach a woman because they are scared. You want a man, not a boy. Sogoet out into the real world, meet people in the flesh. Don't rush. Always be true to yourself and never get drunk with them until you know they are cool. Your heart will tell you, if you know how to listen. So rip up that list of requirements and enjoy the moment