This is long but...i really need your help?...ok well its not that long.?

ok so i fell...really empty...im not like anyone my age (14 year old female from australia) ok...im like 10 years more mature then i should be and thats because my older brother was very abusive...my mother has been depressed all my life and tried to kill herself a few times...look i dont want to get into this but i know this is gonna sound stupid but like i took this myspace quiz about life right and my answers compared to others...it was...so differnet, i guess in a good way but i just dont want to feel so...like im not sappose to be a human...sometimes im even wiser then adults...i mean really...even my dad who im so close to cause were alike...were not on the same page ya know? and unlike most aussies i detest the heat, i love rain and clouds make me feel homey and comfortable...but i do like sunshine its nice...i just prefer rain i guess, i hate swimming but the beach is ok, i dont want a tan like everyojne else and im not blonde and athletic aND talk like a smarter version of paris hilton! and even when i ulter my personality a little to mingle with others, well i still feel empty...just like someone or something is missing...am i depressed? i dont fit in well at school i mean not that i want to but...im even different from my friends yo know? even tho im close to them...i dont remember if i was always like this but...ive always (not meaning to sound snobby i just hae to describe myself so you can help me) anyway ive always been more caring and compionate then most humans...when i see someone sad its like i can feel it to, when i see someone happy i can feel it to...anyway...i feel so lonely cause i can feel theres something missing, whats wrong with me? even when i am happy i still feel empty?