It's not rocket science but a little effort is needed of course (as with most things in life)
Oil futures low today (so far) was a bounce to the tick on a previous level with very high volume.
So I hear you saying: "sure, nice of you to post that AFTER the fact"
Indeed it is. The signal happened at 10:49. So you can take 5 or even 10min to think about it

and than enter with a stop right under 48.20 to make this a really low risk entry. Large potential, low risk, that's how it should be done. Not the other way around as some are practising.
If the signal did not materialise (no bounce with high volume) there would have been no trade. So you need to wait until after the fact.
Well at least that's how I trade, but I'm sure others do different things. Whatever works I'd say.
JP