If you can put the ego aside and see where you really stand, that's a huge leap toward making your art better. So many students (and, yes, professionals) have an incredibly inflated opinion of themselves. Mom and the relatives put a lot of the drawings on the refrigerator and Junior feels pretty good about his talents. That's great. But the refrigerator isn't the world at large. It's not even the world of art school, where there are some great talents lurking about. If you don't allow your ego to get bruised in some serious ways during the critiques then an art career will be a trial for you.
There will be incredibly harsh criticism coming your way and if you haven't spent the time in school toughening up your skin, you're in for it. You know what's wrong with the work, if you'll admit it. If you do know what's wrong, then fix it. Work on it. And surround yourself with people who are honest with you, not yes-men.