Where do you set your stop loss protections?
At whatever level I've decided (on entering the trade) that if the price reaches it, my entry wasn't right and I no longer want to be in the trade because I no longer believe I have an edge.
I find it good to relate that distance to the volatility.
The guy I learned the fundamentals from taught us to set at previous low.
Sounds quite good to me, in principle.
I often do exactly that (for a long trade, naturally).
And that's a way of relating it to the volatility, of course.
Another would be to use a multiple/factor of the ATR.
I find this to be way too conservative (as price swings during the day almost always trigger to sell). It's much worse w/volatile stocks that may see a pull back after a rally.
Have you thought of looking at doing the same thing, but using the most recently formed swing-low on a slightly slower/higher-period chart, instead, then? It's one possibility ...
In your experience, what has been the sweet spot (price wise) to set a stop loss or stop limit sell order?
Generally above/below the most recently-formed swing-high/low (depending on whether we're talking about long or short trades). But that doesn't matter. What matters is what the nearest thing is to a sweet spot
for you. And ultimately you can only decide this by careful monitoring and comparing the collective outcomes over hundreds of trades. In other words, it's a huge job, to get it right, and it can vary between different instruments you trade, as well.
If you want one quick, easy thing to try, I would try doing the same thing you're doing now, but on a slower chart. And perhaps think about whether you're
sure that the SL-distance is the real problem, here.