Knowing youre not loved by your mom

My entire life ive know im not loved, not only romantically but not even by my own parents. 

My mom has always shown that she doesn't love me, she has always shown her favoritism with my brother even when im around, Is like she likes to show that she doesn't love me. And how do I know this? 

My brother does not live with her or me, he lives in another state and when he is away the days with my mother can pass without a single word to us. She will only talk to me to send me to do things. 

When my brother comes home my mom would laugh, talk, go out more (never invites me, she only invites my brother) 

She even stopped telling me good morning, I have to be the one that does it and she will answer me with a vague good morning. In the morning if I do not greet her the first thing she will tell me in the day will be an order to do things, clean clean and clean. As if i were his stupid servant. 

When she makes me feel bad or I cry about something she does my brother and my mom will act like nothing happened, she will go to my brother and laugh or talk badly about me saying that I am useless who does nothing. 

And I hate her.