So, it was mentioned that you have posted before. So I looked at your previous posts. It looks like you have started about 14 threads over the last couple of years and received somewhere around 350 replies. All of your posts have a pretty common theme, a desire to attend an Ivy.
My advice, for what it is worth, is to stop posting and make the decision that is best for you. You have received tons of advice. You have your parents and other family and friends. These discussions boards are very useful, but ultimately this needs to be your decision.
Also, this is a long journey and this is just one step. It seems really important. But whether you end up at Brown or Princeton or a backup, there will be bigger decisions down the road. And undoubtedly you will be well positioned no matter what you do now.