Well, perhaps not as handy as what you’re proposing (meaning full manual control), there is the Item Inspector Script that I personally use a lot, which keeps track of your leeches -
There’s also the Leech Trainer that creates a session of 10 items you’ve failed, but then proceeds to throw similar looking items at you to see if you react!
It’s great for training interference which you describe - but you don’t get manual control over the process here.
Still, both are great ways to go after trouble items. And the fact that you don’t have to do any manual tracking of items can also be seen as a boon (less work for you).
In any case, I wish you good luck with your studies! 