Write invalidation before you draw the entry

Most technical analysis training shows you where price might go. Useful. Incomplete. The plan that survives a rough open starts with the level that ends the idea.

A practical order of marks

1. Locate the structure that would cancel your bias (swing low, range edge, session open—whatever your method uses).
2. Measure distance from intended entry to that invalidation.
3. Size the position from a fixed risk unit so a stop at invalidation costs what you already agreed to lose.
4. Only then write entry checks.

If step 2 produces a distance your account cannot fund at your risk unit, the setup is too large—not “almost right.”

What we see in clinics

Traders often mark entry first because it feels productive. Invalidation comes later as an afterthought near a round number. In the room we reverse the pen order. The chart looks less exciting and more honest.