I hate to be a downer and I generally believe that it’s always worth taking a shot at your dream, so definitely apply to your dream school(s), but you need a better back up plan. Your profile, combined with the fact that you are a transfer, is not very competitive for Ivy/MIT. People with far stronger resumes are rejected everyday from these universities. It’s a dream, so go for it, but understand that it would be like winning the lottery. You need a Plan B if it doesn’t work out (hopefully staying at your current university would not be such a terrible option).