Apog has makes excellent points on your dilemma. I only would say that as a college student, you should be able to read for the WT study, I mean, come on. I knew of a middle-aged under-educated brother who gave meeting parts while being smashed. I do not have a 4 year degree and have read for the bible study and the #1 TMS talk without any preparation. If it's fear of being in front of a large audience is the problem then look at it as "Toastmasters" preparation.
Also, you might consider actually sheading a river of tears when approaching the responsible overseer to ask for a reprieve. Try thinking of a very sad story, like a kitten being skinned alive by a Rottweiler or maybe slam a door on your hand or something, that will get the tears flowing. Play up the pity card with him, that would will get you demoted faster than than a "Sacred Heart of Jesus" tatoo. Hey, I'm just saying that with your degree under your belt, you will in time look back and see the humor of it all. Hell, there's nothing that will "qualify" you faster for spiritual privileges than a straight-day high-paying gig! I'm just saying.