Why does my dad treat my brother like a king and treat me like cr@ap?

he is 28 and not do anything. sleeps in the morning . not at night. but dad doesn't tell him anything. then when I sleep one hour in the afternoon he says you sleep now? when I said a cockroach came near my face he didn't react but when my brother tripped over something and broke it he ran to help him said... show more he is 28 and not do anything. sleeps in the morning . not at night. but dad doesn't tell him anything.
then when I sleep one hour in the afternoon he says you sleep now?
when I said a cockroach came near my face he didn't react but when my brother tripped over something and broke it he ran to help him said sorry.
he is just an as@sho@le. this doesn't make sense.
when I want to talk he takes me as a little girl then takes my brother very seriously .he talks like a drill dad doesn't say stop .then when I talk a little he says im going to work.
he grins when he sees me but has a scared expression when he sees him.
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