There are some people that only trade 12 times a year. Mainly NFP or non-farm payrolls, and in bond futures or forex.
These two markets are the only two that runaway more likely then others on news. Equity markets back n fill even during nfp.
By only trading moments in time that are optimal, you have effectively taken away market exposure during those times your not in.
So if your stop loss is 1% on a trade in those markets, and you leave the trade alone after it develops. And close the trade at the end of the day EOD. At the most you can expect to loose 12% on the year on equity.
But the profit potential can be pretty huge on these days. You can beat the indexes year over year.
So if you want a less stressful approach, identify those days that will likely have a good deal of volatility. And stay out of days that arent optimal.
But most people who even have a modicum of success, will be watching the markets most everyday and trading. But not with the same size as other days.