I have no limbs so how do i become more independent.?

i feel so useless i am 14, im a boy, and i was born with no arms or legs and i cant do anything a normal person does i cant even use the shift key on this keyboard. my mom or sister picks me up when i need something or we go somewhere because i hate wheelchairs.i cant feed myself so my mom just feeds me with a spoon like a baby. they just wrap me up in a blanket and act like im a baby and hold me the entire time. when my mom gets tired of holding me she hands me to my sister and when she gets tired she hands me to my mom. i really want to walk but im just to slow to keep up and i sometimes fall. i asked if i could just stay home one day but my mom said something could happen to me but its so embarring in public being carried around like a baby. my moms even suggested a stoller but i said NO but she keeps saying it would be easier for them instead of carrying me. i cant go to the bathroom by myself or clean myself so my mom makes me wear diapers. ive tried to get on the toilet but i always just fall over. i thought i could use my teeth but i thought no i dont want my teeth touching a toilet. i asked my mom if she could by a small toilet for me but she dont know where we can get one so im stuck in diapers. and my mom changes me and sometimes makes my sister change me when shes on the phone its kinda embarring. my mom constantly checks me to see if im wet or messy and changes me in the womans restroom sometimes. she just uses baby wipes to wipe me and baby powder and rubs baby lotion on me. ive been in diapers ever since i was a baby i cant go to the bathroom i cant even feel when i have to go or if i have already went so im basically incontinent. When i get a wife or girlfriend u dont think they would mind changing me because i cant do it myself? i type with my nose ive actually got pretty good at it. im home schooled. i tried going into a grocery store by myself one time to buy some chips (my mom let me she was waiting in another part of the store) but a woman thought i was a toddler and picked me up and yelled- Did somebody lose there kid! part of my diaper was showing above my pants so i guess that made me look like a baby from behind and i was crying and my mom ran and got me from her thats why im not allowed to walk by myself in stores i have to be held. since i havent hit puberty yet and i have a babyface and i look so short without limbs i guess i look like a toddler. how can i become more independent im treated like a baby. my mom only lets me stay home when my sister is there. my sister is 16 she wont let me do anything or be independent when she babysits me she just treats me like a baby. my mom always puts her finger in my diaper to feel if im wet or messy like i cant check myself and tell her. and she makes my sister check me sometimes like im a baby and cant do it myself. how do i become more independent