Originally Posted by Desmond44
So... what really helps in poker is building a nice little memory palace (http://www.wikihow.com/Build-a-Memory-Palace) and put in all the outs and opponent's possible hands, also put in there the opponent's style of play.
A memory palace is not a practical tool for aiding the sort of short term memory needed for playing a specific hand of poker.
I started a thread on checklists so I could find out what considerations people had when assessing a hand. I find my own decisions easier if I have an outcome in mind up front. The outcome will be influenced by position, player styles, stack sizes etc. Then each phase of play either builds on / eliminates that outcome or presents a new one.
As a novice it would be nice to have a flow chart to help with decision making. But in reality there is so much information you've got to make the decision based on rapid assessments that happen out of conscious awareness and arrive as intuitions. Intuitions get better as skills develop.
You say that you are fine when there is no clock so you are probably filling too much of your awareness with the clock. Having a specific decision making process - with prioritised decision points - rather than waiting for the gut feel to arrive may help. You can evolve this consciously and when it becomes routine it will settle back into unconscious awareness.
Behaviours tend to be context dependent so you could identify a context in which you make a decision under pressure easily and mentally review instances of yourself making a series of those decisions successfully then look for what you do that makes those decisions so comparably effortless.