I think he needs to just buckle down and get this hurdle out of the way. Once it's out of the way, he'll feel less stress and will, theoretically, feel better over all. He's got the plan and the exected outcome figured out. Now he needs to just do the work. It's not fun and it's a headache, and most definitely it's stressful and totally sucks... but he's got to be disciplined and get through if he wants it to go away. He's almost done... so very close. Just a couple of days of suck left and he'll be free (with the exception of Physics). Just tell him "do it to it!"