I’ve gotten to the point when I see people on the ledge and they ask me to talk them down and say “on your mark get set…“ Take a breath. Your letter will be submitted by early September you’re fine. And it’s something you have no control over at this point so There is absolutely no rational basis for thinking about it in the least as you can have no impact on the outcome. And if you have no impact and cannot take any action worrying about something just give you stress and grief.
If that’s isnt Enough I suggest taking an ice cold shower until your lips turn blue and you’re shivering, Then stand in front of the bathroom mirror and slap yourself until you drive the thoughts from your mind