You should never worry about that stuff. I’m so sorry that is happening for you
No matter if you’re skinny or chubby, you are you and you can wear what you want. Body weight doesn’t depend on clothing at all, it depends if YOU like it, not others.
You are beautiful. You are kind. You are amazing. You matter.
Everything about you is amazing, don’t let others get to your head. I believe in you
I hope this helps <3