Fed up

I just wanna run away....leaving everything behind.Now I can not love anyone,it was me who use to say that getting love from someone is just like a dream come true but i never got love from any one i just gave...gave and gave but then also never got back love in return...why??? Where the hell i went wrong....Whom so ever ditched me or not with me anymore is getting love,affection everything one needs in his or her life even after all his or her wrong doing's and what about Me....Thinking or doing good to people has given me nothing except for this pain in life.
Somebody has said it right that it's better to be selfish and turn everything the way you want it to,just think about your happiness forget about others.Like Charles Darwin's said "Survival of the fittest"
Hate myself,hate everything and everyone around me.Why can not you people understand me,why you all do not love me or like me the way I am.
I do not know when i ask people that what is there in me which i need to change they just say you do not need to change and you are very sweet and on and on (a very long list of my positive points go on) then what the hell goes wrong when it comes to relationships.
All of them who are in touch with me say's that one day i will surely get someone who will be just like me,who will be loving me like i want..so i am just waiting for that day to come...hope it will come soon........