<p>I can’t help you with the first two but about the buyer’s remorse: remember why you chose Princeton. If you thought long and hard about the decision and in the end, Pinceton had more pros than Stanford and fewer cons, then you made the right decision. The inability to make decisions is not a good trait: you made a decision, now commit to it.</p>
<p>I made the same decision a few years ago when deciding between graduate schools. I absolutely loved Stanford but I decided that Princeton’s program was better for what I want to do. Do I think about what would have happened had I gone to Stanford? Of course. I thought I had made the wrong decision (sometimes I still do!). But then I remind myself why I chose Princeton and I know I made the right decision.</p>
<p>NB: how hard you will have to work depends on you. If may take a semester to figure out the right balance but you’ll figure out what works for you.</p>