How do i get my family to love me more?

hi everyone. okay i don't wanna come off as a selfish attention craving teenager so don't judge me. i come from a big loving family italian family.i have a billion cousins, most of whom are older than me. but it's okay bc i look up to them and stuff. but like lately i've felt SOOO unloved. like i don't even know how to explain it. it's just like some of my older cousins are always like ohhhhh im always here for u txt me call me whenever u need im always here. so then i'll txt them or call them and they neverrr txt or call me back. but if my sister does they txt her back. idk its just like i feel that they love her n my other cousins more than me. but the minute i post a status on facebook saying oh i love how people answer my texts they yell at me. like im the bad one. ugh i realllllllllllllllllllllllllllllllllllll… hate my life. so someone please help me before i shoot myself.