Absolutely go to your dream school! Do not live at home, commuting with your brother and having fewer options for all the pre-med activities that will shape you. You will have loans for medical school, but there are several loan forgiveness programs, or perhaps you will go into a speciality and easily pay them off. Or you will meet another doctor to marry and you will both earn enough to dispense of your debt. or Bernie Snders will get elected and student debt will be forgiven. I think you only go to college once, and this is your dream school. Go for it!