Luck is loud, skill is quiet
Poker pays its decisions on a delay. Over one hand, luck rules; over ten thousand, luck is noise and skill is the whole story. A good session can lose. A bad session can win. Judge yourself on decisions alone, and judge opponents on long-run patterns — never on the pot they just dragged. The spot above is top set staring at a four-flush river: if the stacks went in with the best of it, that loss is not a leak. It is a winning habit doing its job.