If this is really your dream then you need to start at a different spot.
1- Step one: Enroll in another college program where you can show your aptitude. Either a one year Masters somewhere or another Undergrad degree that is not distance learning- make sure the institution is fully accredited at the Ivy Leagues. Now, Ace these courses, show that you can achieve A's.
2- Step two: Do something phenomenal. Lead something, change the world, be a leader, and innovator, and someone that takes initiative in life. Volunteer at a local charity(s) of your liking and create something there that shows your skill set as a leader.
3- Step three: Along the way cultivate some amazing people to write amazing recommendations for you. The kind that state that you are exceptional.
4- Step four: Get 3+ years of work experience that is applicable to an MBA. YOur street performances will enhance this relevant experience. Better yet, be a business leader in the street performance arena, this shows consistency. Start an organization,?...
5- Step five: ANswer "Why do you want an MBA?" "Why now?" "Why at each specific Ivy Leagues school X?"
6- Now take your GMAT and achieve that 720+.
Anyone who wants an Ivy League MBA has to be exceptional. If you want it, prove you are exceptional and go get it!
Best of luck.