I have my own system that many times allows me to trade less, but sometimes I think like if I leave home I miss opportunities.Yeup.
The boredom.
I try to be done by 2:00 pm est. I'd be driven nuts if I traded any longer.
Also, I got into low-effort strategies, and correlations that can just "go" and still give me great risk-adjusted returns with little maintenance. I got into trading for 1) money and 2) freedom. The lower-effort stuff can just 'go', while I take off, do shopping, spend time with my congregation, take a vacation, etc.
I get too tied to the monitors, I start getting ... a bit cranky ...