worst is subjective but the bad thing about ocd-related mental fatigue is that ive not been able to notice how bad it is ocd makes it seem like youre performing well putting a lot of effort etc even though youre performing at least 2-3x less effectively you think youre doing well but you spend at least 2-3x more time as non-ocd and you do more errors you do a lot of work for the same results that non-ocd head produces in 12-13th of the time theres also the freudian myth that ocd sufferers are more intelligent etc i call it delusion and huge amount of confirmation bias