Thanks for the question. In general you can apply every theory about trading support and resistance levels or zones.
If you ask me, personally I only like to use S/R for entry when a Level is broken (not minor with only a wick, but preferable with a beefy body through it) and then Price retraces into that same level for a retest. Expectation would then be that Price only retest the level and then continues into the direction it has broken the Level before. In short: “Support turned into Resistance” or “Resistance turned into Support”.
The Market should first show her hand into which direction it wants to go. So I wait for that expansion higher or lower, which will break levels. Most of the time, Price will pause and retrace before continuing his move in the direction of the initial expansion. That’s were these levels come into play. When you take the levels, transpose them to your chart and then study what Price did. Make your notations on it like I posted some examples above. Add text what you notice. Over time you will start to recognize certain things. This could be for instance:
At what time of the day/different sessions do the wins take place and when are they unsuccessful.
What is the pips available for a win, what would have been the draw down.
Do we see repeatable occasions of respecting levels as resistance and break each level below the market or the other way around.
The latter gives you clues about directional bias/current trend. This in fact is already a stand alone way to use the levels. Only to come to a conclusion if we are in a bullish trend, a bearish trend or in a consolidation stage. Not using them to define Trade Setups and Entry Signals.
This is how I see it. But the beauty of Trading is that we all see the same chart and candles, but we all can see different things in it, come to opposite conclusions AND still be both right.
Hope it clarifies some things to you. If not, please let me know. I would like to discuss and make things as clear as possible.