Fear of Missing Out versus Loss Aversion

The key to sleeping better in Australia while trading in the US markets seems paradoxically to be using wider stop losses rather than tighter stop losses. With a tighter stop, I am concerned that the market will hit the stop and then bounce back up strongly, which is what would have happened last night except I stayed up and adjusted the stop. This is the fear of missing out - crystallizing a loss and then missing the upside. I need to be more accepting of the possibility of large losses to allow the possibility of gains. I actually seem to have less aversion to losses if they aren't tied to then missing out on gains. FOMO seems to beat loss aversion. This is because my trading model has a high win rate. Traders with techniques that have a small edge or no edge have to make sure that wins are bigger than losses - letting winners run and cutting losses. They need the asymmetry to make money. I don't.