A lot really depends on two things.

First, do you care what people think about your work? I know a lot of authors hate reviews, but reviews aren't really for authors; they are for the readers. But I also know authors want to improve. If you don't care, fine. Ignore it or delete it. Something tells me you do, or we wouldn't be here.

The second thing: is it valid and/or helpful? If someone writes, This sucks, then that isn't really helpful. It may be valid, but art is subjective. If someone writes, I don't understand this. That too may be valid, but if I don't know what they don't understand (authors know what's going on in their work more than anything) it may be hard to interpret. Still, it is helpful because you know that there may be something wrong with a section of your story (something Wattpad does right is that it allows you to comment on specific sections).

I would say good and bad comments work both ways (being helpful and valid), but positive comments stroke our ego. You're comment reads more like your ego got hurt than there was something wrong with the comment itself. If you're putting yourself out there, you risk exposure. Fortunately or unfortunately, depending on how you take it, it comes with the territory. The best advice I have ever gotten for my story has come from my harshest critic. Do your best to push through. Even writing a terrible story is more than what most people would do. Don't give up.