I also trade without SL, Create a grid and only trade pairs that pay rollover. On usdjpy long the swap is ~100 pips per 4 months. In the end this always pays of with proper MM. You just have to make sure you can hold even when usdjpy goes down to 0.90. Also trade many pairs so you hedge naturally.
I trade like this for 4 years. Last week I noticed drawup for the first time
Right 15+ trades short eurnzd are past 1000 pips in profit. Set and forget workd like a charm. Only concentrate on loss, don’t bother about profit