No matter how good your essays are, no one has an awesome chance at any of the high reaches, especially Stanford. However, I think you have a decent shot at USC with good essays; I don’t know so much about Rice and CMU.
If you’re not attached to JHU, I would cut it. It would be a stretch and arguably not worth the time & money if it’s not a dream school.
I think you should keep URochester because you don’t have many matches. Consider replacing JHU, CMU, and Rice with slightly easier-to-get-into schools.
Also, you did mean Trinity in Hartford, right? Just realized I should double-check.