I've lost my ear!

I actually swore I would never do this...but I'm looking into Grad Schools.  Truly, it only makes sense.  In order to keep renewing my teaching certificate, I'm required to take a certain amount of courses anyway, so I guess I might as well work towards something.  It would be a nice accomplishment - to have a Masters Degree.  Plus, it'd put me up higher on the pay scale.  Not that that's my only reason - but it is a factor, I can't lie.
But see, I've been out of school for 12 years.  And a lot of music education is ear training...and like everything else, the less you do it, the more you lose that skill.  Yes, that skill will get better as I "retrain" my ear, but in the meantime, I'm trying to keep up with kids who are fresh out of college.  It would be like....a quarterback who's been retired for 10 years trying out for a team against the Hesimann Trophy winners.  Seriously.  I just don't want to humiliate myself.  And honestly, I had a hard enough time with ear training courses in undergrad school - and that's when I was in my prime!If it wasn't for looking over my good friend's shoulder at her answers, I would've never passed that class.  I'm only slightly exaggerating.  I know in the end I won't be stopped because of my self doubt.  If I can give myself props about one thing, it's that I don't let my insecurities or fears keep me from doing things.  But I do have to talk myself through the process, and take my own pace.  I guess when I'm ready ready to take the leap, I'll do it.  I hope I get ready soon, because I'd like to get going on this next fall and the deadline for all the admissions material is April!