Yes, thanks for clarifying to all of us. Focus on your Brown interview first. Let the process run and show your intent with CYMS later on.
I would certainly understand feeling awful if you get an R, but getting an R after you bomb an interview will make you feel really awful. At least you have a lot of A's, so don't go into the interview lacking confidence you can make it into medical school. Don't psych yourself out of a spot in medical school by accepting an imposter syndrome attitude... especially if you hold offers.