CosmicRose, the first couple of years of college are usually general courses. You don't need to actually declare an official major until later. You might try on Intro to Business class, though.
Also, I really hope you can find a clinic that will let you just pay what you can and talk to a therapist. You might have something like social anxiety that can be treated.
You are absolutely not a failure. Please try your best to ignore your parents' negative comments. I have a 23-year-old who is back at home, taking college classes. He also works part-time. As long as he is working toward a goal, I am satisfied. You are not the only young person these days who is still living at home. Things are different from when we old fogey parents were getting out of high school.