Journaling has actually made me save tons of money and look at things which I always used to miss (on the psychology side too)

Make it a habit before each trade to write:

(1) My thesis: What specifically do I expect + by when?
(2) Alternative explanation: What else could produce the same signals?
(3) Confirmation: What would genuinely strengthen my belief?
(4) Invalidation: What would weaken/break it?
(5) Action: What would make me hold/add/reduce/exit?