I remember this exact same feeling when I got rejected from what I thought was my dream school at the time (MIT). I felt physically tired and just laid in bed f

I remember this exact same feeling when I got rejected from what I thought was my dream school at the time (MIT). I felt physically tired and just laid in bed for several hours right after getting the news. It's a pretty natural reaction to the situation. The good part is that it does pass. Give it a few days or a week and you'll wonder how you felt so bad now. Also, this may be too obvious to need saying, but there are a number of other schools where you can learn as much and make as many good connections as Harvard, and it sounds like you're likely to get into at least one of them. In my case, I ended up going somewhere where I'm pretty sure I had a better overall experience than I would have at MIT. It's very possible the same will be true for you.