My sad story

Today , it suppose to b my happiness day ever cuz i came back home but you know wat?..i found one sad stories which made me cried a lot ... The story happened during my sister birthday ..My sister birthday was on 6th April which already passed ..There were only my sister and my mom in the house....so my sister's birthday party got only two persons (her and my mom).. During they were celebrating ,my father called my sister by using i phone 4G to face time so that he could see my sister's celebrating her birthday ...You know wat?..i saw that video ,cuz my sister record it during my father called..He sang Birthday song for my sister from Singapore by using face time ..i feel like i pity my dad so bad..He has to work hard for us , and don't have time for us ..and he even buy everything to replace his time that didn't spend with us.... I dont' know ..I feel like i never do anything back to him , just only cried and stress out ...Dad , I promise, i will do thing with my full effort....I will fight with my life ...i will not stress out anymore..From now on my life is study and my study is for u and our family ... Love