What the hell am I doing here?

I spent two hours this morning trying to solve an exam question, and completed a quarter of it. Students are supposed to be able to solve the entire exercise in 20 minutes. I kept writing alphas instead of gammas (90 degree rotation syndrome) and 3s instead of epsilons (180 degree rotation syndrome, aka mirror reversal syndrome, aka L337n3ss syndrome). This is not good, at all.

I've done pretty much nothing useful this week, and spent most of Monday morning in tears. These things aren't very good at all.