Advice ??

Hope

So I live with my cousin, his gf, my aunt and my uncle and have been for 3 years because when I was 16 she had legal custody over me & my brother. Her son is 21 years old never cooks, cleans or picks up after himself & she has NO problem with that. My other cousin (28) has his own house but comes over and stays the night every single day & doesn't cook, clean, or clean up after himself either & again she has no issue with it. I work full time, I come home & clean & I do dishes every night & if there's one fucking dish in the sink or if I'm relaxing its the end of the world. I don't see why a 21 year old & his girlfriend & his brother can't clean or do anything with no issue but if my brother & I don't clean we get called retarded & lazy. I'm saving up to move out but I most likely won't be moving until after my birthday in august.