confusion hi confusion

I am just wondering of how I can improve my life. I know there is nobody with me, nobody to understand me. Only me with me. No one to encourage me,all by myself.
To whom should I seek help and refuge, I know none.
My dad, apart from swearing and tells me constantly that I am a failure knows nothing else. It hurts when people near you say such things, Anyway, nobody has the right to say hurtful and this kind of things to anyone. This is not ethically and morally correct.
Then why, why are those people so judgmental when they themselves are not near to perfect. Anyhow, nobody can be perfect.
My dad keeps on irritating me and now, to add on that my good for nothing sister who knows  only how to blow money and when I make a remark, I become jealous. I wonder how such people function, they live only to taunt others instead of encouraging and boost others. While they are my own parents, I don't know how to live with these kind of people anymore.
Hopefully for me, there is mum, who somehow tends to alleviate the gravity of the situation, else I am afraid to even think of what I could have done to myself.
It's really a pity for children like me, though we get everything, we live in a restricted, limited and dictated environment. No decision, nothing,, we cannot even share our emotions openly in our house for fear of being spoken badly, being sworn at or in the worst case being beaten.
I love my life that it why I have cherished it so much, but if this situation persists, I am not too sure if I will be able to cherish it for a longer period.