Write the invalidation before the entry
Why trading plan development starts with the price that proves you wrong, not the one that proves you right.
Most unfinished plans begin with a hopeful entry. In our Brisbane sessions we reverse the page: you must name the price or structure event that ends the idea before you may write the trigger that starts it.
Invalidation is not the same as a stop you move for comfort. It is the condition that says the setup you described no longer exists. On a break-and-retest long, that might be a close back inside the range. On a swing failure, it might be a reclaim of the broken swing high.
During technical analysis training we ask traders to speak the invalidation aloud. If the sentence rambles, the chart mark is probably soft. Tighten the structure first, then place the order logic.
Homework we often set: take five recent trades and rewrite only the invalidation line. Entries stay untouched. Traders are usually surprised how many “plans” never defined failure at all.