Criticism abounds in the writing world. Whether the editors slash your article to pieces or a family member or acquaintance throws in their opinion, you'll always have to wade through it. But keep your vision and your focus.
Remember why you're writing in the first place? Because you love to write! It's who you are; it's who I am...
No, we're not perfect. Yes, we may overlook something and we may even make a few mistakes. After all, we're human and that's what humans do--make mistakes.
Take the criticism and if it's needed, make the corrections or at least think about it. If you feel that you've poured all your best work into it, then be proud.
You can succeed, regardless of what others think. You can be the successful writer you've always dreamt of becoming. But you have to believe in yourself and your writing. You have to believe that it's possible....
Take a deep breath.... and keep writing the cyber highway!