I'm so lonely and I don't know why I can't get a girl to like me...?

Everyone says be yourself. This will only work if you are born with the "edge". You need to combine strategies that work (look up David DeAngelo, or datingadvicesecrets.com) with your own personality. Body language plays a huge role, and learning how to put it to your advantage is necessary. If a chick says hello to you, don't eagerly go up to her and say "Oh hai, how are you?" Simply state "Hey." While keeping eye contact, with a half-smile, slightly tilting your head upwards. Just doing this can increase your ual attractiveness as a whole. Remember that women marry men, not gentlemen.