Equilibrium theory when the demand and supply meet in center line, all economy run smoothly and normal, where producer gets enough supply chain, and supply chain does not exceed the capacity to overwhelming the market. implementing equilibrium in forex, when demand and supply formed flat conditions.
Emotions are inevitable, but stick to a trading plan/stratergy and do not bend your own rules! If you risk 2% except that it is gone until the TP closes. If you hit your daily target, stop trading and dont be greedy. If your rule is to stop after 3 losing trades in a day/week, stop, dont be try and overcompensate. At the end of the day be disciplined.
There is no equilibrium when it comes to trading, but the best way to achieve almost similar to that is to make sure you have a right strategy or plan for trading and keep your emotion out of the trading for the whole.