The experiment

Take one candle — say a hammer, small body at the top, long lower wick — and place it in two different locations. Nothing about the candle changes. Everything about its meaning changes.

Identical final candle. On the left it is a rejection of a defended level; on the right it is one more wiggle in a chop.

What "context" actually consists of

Context is not a vibe. It is four concrete things you can check before you take a pattern seriously:

Location relative to a level. Has price reversed here before? Is there a swing high or low, a round number, a prior day's high, a moving average you and everyone else can see?
The preceding trend. Reversal patterns need something to reverse. Measure it: is the move into the pattern actually a decline, or three bars of sideways drift?
The higher timeframe. A bullish pattern on the 15-minute while the daily is in a clean downtrend is a counter-trend trade, and deserves smaller size and a tighter leash.
Whether anyone else can see it. This sounds cynical but it is mechanical. Levels and patterns work partly because enough participants watch them. A pattern on an obvious daily level has more participants behind it than the same shape floating in space.

The failure mode this prevents

Beginners learn a pattern, then see it everywhere, and trade all of them. The result is a high trade count with a coin-flip hit rate, minus spread and swaps — which is a reliable way to lose money slowly.

The fix is not learning more patterns. It is having a written filter: I only take a bullish reversal pattern when price has made a lower low into a level I marked in advance, on a timeframe I named in advance. Most of the patterns you see will fail that filter. That is the filter working.

Confirmation, once more

Every pattern in Part 2 ends with "wait for confirmation" because confirmation is where the edge actually lives — if there is one. The pattern is a hypothesis: sellers may be losing. The confirmation candle is the market agreeing or disagreeing with that hypothesis. Trading the hypothesis instead of the answer means you pay for every hypothesis, including the wrong ones.

How to check this yourself

Take your last ten trades (or the last ten patterns you noticed) and score each one on the four context checks above, out of four. My prediction is that your worst trades scored zero or one. If so, the fix has nothing to do with learning another pattern.