Guys this isn't a school question more like a life question but I really need help on this one.

I feel like my dad doesn't like me anymore. I mean he likes me sometimes but most of the time he's in a bad mood. Whenever I'm in my parents room they tell me to hang with them for a bit and it always drift off into messed up things ( Like his heart, or how we should help our mom more which we do. ) He's at work most of the time so he doesn't know. We are also in the foster care system and whenever we get a little break from the 24/7 screaming kids my dad always takes my mom out. He leaves my sister and I behind. There was one time when My sister and I got dropped off at the movie theater but that's about it. We never get to do anything as a family anymore... Am I just too spoiled? I do not want to be spoiled... It seems like out family is just broken know. I asked my sister for help but she said I shouldn't be the one asking her the question because she doesn't have a good relationship with him. I know my mom won't understand and my dad I know that he wouldn't understand either. He doesn't take feelings into consideration.... Any advice?