How am I supposed to take care of myself if my dad ever passes?

I can never get used to being alone. Just the idea of losing my last family breaks me down and cries. I can’t be home alone! I won’t survive when my dad passes
Updates
3 d
Ok clearly people are just assuming shit about me!

I also have medical conditions. I can’t work. I also have autism and learning disabilities. I can’t survive without anyone.
How am I supposed to take care of myself if my dad ever passes?
Post Opinion