I can't stop my hands from trembling

I want to get out of this state. I'd really appreciate some advice.
It might be an uncomfortable topic
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Ever since I was a kid, I liked being by myself.

During my school days, I used to doodle and usually my classmates or teacher would be compliment me since they knew how much I liked to draw.

Recently I've begin to post it online and people have been very nice and honestly it's brightened up my days a lot! It's fun talking to people and sharing art with each other.

Things happened at my uni, and now my peers who had something bad happen to them, are now directing their frustrations at me.

... this is probably bullying but that's not I want to focus on.

Today I didn't happen to notice them in the bus and began drawing on my phone, they snickered and called out each part of my process loud enough for me to hear.

The sketch. The lineart. The colouring.

How could such young adults be so immature and go so far as bothering a completely harmless person?

I wanted to brush it off, really.

But I couldn't bear it and had to switch to playing games to calm myself.

This shook me up more than I expected.

Now when I open the app and look at that piece, I can't bring myself to complete it.

They probably know absolutely nothing about art.

They didn't even say anything about the quality of the piece.

Yet the way they scratched at the fragile part of me that found comfort in art is what bothers me the most.