Military certificate will not reset on Mac

I have been trying for three days now... I just tried using the AVD feature for the new military email and I clicked on the wrong certificate on my Mac to sign into my email. Now I cannot reset the cache to allow me to try a different certificate when my CAC is connected to my computer so that I can get into my email. This app is frustrating me so much, especially since I am on a Macbook, there is not a lot of resources for clearing the cache and quitting the app, deleting the app, hard restarting my computer, nothing has worked so far. Someone please help me so I can log into my email. Also, there is not a password for this email, I am only allowed to use my CAC and certificated passcode to login.d