well being ignored due to age is something which is common but never misunderstand that u r being hated
in my case my elder brother ignores me coz i am 4 year younger than him and i still know by heart that he loves me. My mom like a devil sometimes and angle sometimes . dad is like Hitler most of the time but i still know that my family loves me and i am part of it and of course i love them . i advice u to not be depression and that ur family members don't love u or ur sibling