The Wheel is ten, the outside turning; Justice is eleven, the reckoning after the turn. She sits with a sword in one hand and scales in the other, and her eyes are not covered — unlike the courthouse figure. Tarot's Justice sees, because what she weighs is what you yourself did, not an abstraction of fairness. Eleven is the first step past ten: the cycle has turned, now look at what it turned up.
Where you'll recognise it: consequences coming home, a decision with no wholly good option, and the moments you realise 'this is actually something I caused'. This card is about cause, effect and responsibility — not punishment, just accounts that were going to balance anyway.
Running well, Justice is the clearest state there is: seeing plainly, judging fairly, willing to make the decision that has to be made. Stuck, her problem is tilt — the scales are off and she thinks they're level, 'fairness' becomes the name for revenge, or the reverse: so afraid of being unfair that she rules on nothing. The sword is upright. Judgement can be slow, but it has to come down.