For your trader friend dealing with emotional carryover between trades, he might benefit from mindfulness-based stress reduction (MBSR) techniques. These practices help in developing an awareness of the present moment and can aid in breaking the cycle of emotional reaction from one trade to the next. Additionally, cognitive-behavioral techniques that focus on challenging and changing unhelpful cognitive distortions and behaviors could be useful. He could also explore structured debriefing after each trade, where he analyses the trade objectively, records any lessons, and then engages in a mental reset before considering a new trade.
What? You're talking crazy. You live in FL all your life and don't "make the trip up to Orlando" at least once? Holy shit. Fucking hick. Southern slob. Alllyhead. I don't like you at the moment.
Not whole life. Last 33 years. Even still I've made the trip a few times ... unfortunately. Might even make another one soon, now with Brightline train extended to MickeyLand, well Orlando International anyway. Anyway White Cracker is the proper term down yonder.