The bad luck myth
MTT poker is a game of brutal variance. Even a top 1% player loses 70 to 80% of their tournaments. It is pure math: with 500 entrants, winner-takes-most payouts mean you bust before the money most of the time. A beginner who sees their last 20 MTTs end in a loss often concludes they are personally unlucky, when the pattern is statistically normal.
The problem is that this variance hides the real leaks. You can play perfectly and lose 30 tournaments in a row, or play poorly and hit a score that gives you the illusion of playing well. That is why measuring your real level takes a sample of several hundred MTTs, or better, a spot by spot analysis of your decisions.
If you lose regularly, the right reflex is not to tell yourself "I ran bad" but to ask "where am I giving away big blinds without noticing?". The leaks below are the most universal ones.