It's funny. When I was changing the gender marker on my SS card and my DL, I was nervous as all get-out. My therapist kept assuring me that it would be all right. Then the passport--I was super nervous because I also had to change my name on it, and the process takes weeks while the applicant waits and waits.
As it happens, everything went smoothly on all of the documents. But that didn't prevent me from stressing out about every application. So much was wrapped up in getting my documents right. I imagined the worst. I was a wreck.
So, Claire, prepare for the worst but hope for the best. Line up your ducks. But don't let anyone tell you that you shouldn't worry. Sometimes idiots have power over important aspects of our lives, and we're not overreacting if we worry about that possibility. Just don't go overboard like I did!