I came to US when I was a minor under the care of my parents with a B1/B2 visa. My parents decided to stay here for 1 year. 5 years have passed. I am 20 years old now. My B1/B2 visa expired in august of this year and I do not want to stay illegal in this country anymore. I am going back to my country. Are there any impediments for me to exit without any problems?
As far as I know, there is no impediment. But I think you will be subject to a ten year bar from reentering USA once you leave.