This is like a whole new level of understanding for me. This week I took 17 trades in 4 days, no trades today cause I was away from computer. And my results were 7 winners and 9 losers.
If I only took trades that entered no later than 930 am pst, I take 7 trades and win on 5 with 2 losers. That’s amazing!
this doesn’t consider when I exited. There were trades were held over 120 minutes. But the next move would be to walk away, turn the darn computer off and go enjoy life after I’ve made my money for the day.
120 minutes!!??
Look at a 1day candle chart for the last 6-12 months. Notice anything special about the last month?
This 'correction' is gassed; BTFD; if you trade next month, based on what 'worked' on paper for this past month? You'd be sc-rewwwwwwwed.

If you're average hold is 120 minutes, an ATR might not help you much, but I'd still encourage you to put one up and look for any ties between good-trade periods and ATR levels. But if the market is not giving you sufficient 'wash' (think of waves in a tidal plain), it's best to STFO.