i feel terrible and like a leech to society for needing constant help from others

i feel so shitty because i need more and more help to just exist, my mobility is getting worse and worse as weeks and months go by, i need constant reminding to eat and drink, need constant reminding to take medication, have accidents and get yelled at constantly for that social situations are a pain, i go frequently nonverbal, im constantly crying and feeling overstimulated. i feel like whats the point existing with all the issues i struggle with, my parents dont help me and i have to figure it out myself, they call me weird and a pedo for just being mentally little most of the time and watching cartoons and sleeping with my stuffed animals which calms me down and wanting to dress my mental age, i also hate i have body dysphoria regarding not being a child anymore