I feel your pain. I almost exclusively applied to top schools. I think it was hubris. (Although, I will work hard wherever so why not go where the research interests me?)
On my way home from work yesterday, I started thinking about checking the mail and then about continuing to work in my job next fall, and I teared up a little. For me, chocolate works better than alcohol to help me face the mailbox. (I only ever get bills or ads anyway.) Watch insult add to injury as I gain 10 pounds this month...
I try to remember that each application is an independent event. One rejection doesn't imply the positive/negative status of the other applications. You meet the basic application requirements, so you have a chance of getting into any of the other programs. As we economists say, "There's no accounting for preference." That explains why some of the higher ranked schools end up accepting students who were not accepted by lower ranked schools. (I also think that funding/budget size could fit into this.) I really wonder if the odds of my being picked would increase or stay the same if they just put all the applicants' names in a hat and drew 20 names at random.
I think that the best cure for your application-itis is to socialize this weekend. Eat (chocolate), drink (your preferred adult beverage), and be distracted.