Hand on heart, whether or not you get into Vassar will not be affected at all by the typos.
And some free advice: stop obsessively re-reading/re-thinking your app! You will get your result, and I can tell you now - for certain!= that you will either get a place, be deferred to the next round or told, sorry, no- and no amount of angst will change which one it is.
So, find a distraction, and do it every time you get anxious about the result, do that. Studying for a specific final coming up is an old favorite- our collegekid who applied to Vassar ED kept art history index cards with her and every time she found herself being anxious about the result she pulled them out and reviewed them (and got an A on her AP Art History final exam). Bonus: she is doing the famous Art History course at Vassar now (4 years later, and after being deferred), and all that extra studying from then is paying off again 
Good luck (and do the read the Clam Fart thread that @MaineLonghorn linked)