Just an advice for everyone who feels like giving up.
When people suffer a lot, with many terrible experiences people will start to understand that there's more important things to worry about than critiques comments. Is true, it hurts at the moment. But people are different, maybe they like it, maybe not, the thing is you need to continue your story because that's the only way to get better. In drawing skills and writing skills.
For example, lots of great famous series start with their characters noymally and suddenly the famdom gets crazy, they want shippings, they love certain characters, hate others, they'll start to critic. One as a creator or comic artist can listen to this critics and analyze what would be the best. And that depends on your study of the market (your potential clients)
So, don't give up. You are lucky to live where you live. Enjoy making comics.
Not all people are that lucky.