Personalized puzzles based on your most common mistakes?

As a feature suggestion, it would be incredibly helpful to have personalized puzzles with a player's most common positions and mistakes. Not something that's based off of them... just randomly hit me with that position I've been in literally 100 times and where I inevitably make the same mistake every single time.

Sometimes I go over the Explorer, look back at my games, see which positions I play the most and which moves I end up playing more often, then track one of the games where I played a given move and see if that was either a Blunder or a Missed Win.
This is inefficient, slow and error-prone. I feel like with personalized puzzles, people would improve way faster, especially because they would be hammering over and over their own openings of choice and weaker positions.

sounds like a very useful feature!

Good idea, this feature would surely improve everyone's game!