Do you ever feel left out because of your family?

it's like my parents think i'm nonexistent because they focus all their attention on my brothers and sisters. i have a niece and i love her, but i never have a chance to play with her because my other siblings are with her. i just feel so useless. plus it doesnt helpt htat im the youngest and my siblings ahve some sort of pact that i can't get into, i've always been made fun of by them so -_- eh... i guess i just feel really useless in my family.