Spells and Slip-ups: Arcane Souls World (The Wrong Witch)

I suck at witchcraft. Coming from a long line of famous witches, I should be at the top of the heap. Problem is, if there is a spell cast anywhere in my vicinity, I will somehow mess it up. As a probationary agent with the Arcane Bureau of Investigation, I have two choices: I can limp along and maybe pass myself off as a competent agent, or I can fail. Miserably. Worse news? If I cant get my act together, I may not only be out of a job, I could also lose my life. Whose idea was this again?