You mean the Self-Study Quiz script? I has no critical condition filter as far as I can tell. You may try what you can do with the ‘Leech Training’ filter. You may also try the ‘Failed Last Review’ filter. These filters should catch most critical conditions items. You need the additional filter script to have those.
Critical items are basically items you’re still on the Lesson for. Items you get wrong enough that you can’t get out of Apprentice. I wouldn’t do any more regular lessons until you’ve tightened up your criticals.
I don’t know about others but I never had more than maybe 5-10 critical items. My overall accuracy isn’t that great (89%) so I don’t think I’m a shining student or anything.
I have found keeping the apprentice items under 100 helps, too - even if there are “just a few more” before all your lessons are done. I got as far as level 25 before resetting (back on 16 now - much slower pace but much steadier/better learning). Every so often you’ll “oops” on a Guru 1 and they’re back to apprentice, too, so this gives you some slack.
My accuracy on the first runs was around 65-70%. Once I reset I’m usually 85-90%. I’m sure a lot of it was the first pass, but I’ve solidified some stuff, and I recognize radicals much better than the first time around.