Please help

Sofia
Hi ladies.
I recently lost my dad, and the first thing I did was shut everyone off. And seeker help on this app.
I came to the app because I'd made some good connections with people, I may of even called them friends. 
However over the last few days a lot of people have commented mean and nasty things on my posts. I didn't even bother reporting them because I didn't want to re-read them. I just deleted the post I made.
I've been feeling attacked, certain people are following me around glow and reporting all my comments and posts. Even ones that offer no opinion at all - just positivity.
All this has made me sink. I came to the one place I'd get support from my peers, and they all shot me down.
I put a post up saying I've lost my dad does anyone have any good ideas to help with grief. I've never experienced it before and everyone that commented told me to grow up and seem proper medical advise.
I'm scared. I just want some online support until I'm ready.
I suppose that's why I'm here.
Why did my dad have to go?