Analysing a potential reversal point using Volume and Candles

Good Evening (at least in the UK)

I would like to ask advise regarding, if a potential trade setup has presented itself, other than price analysis what other factors should I look at to confirm.

In the picture, on AUD/CAD there is clear level waiting to break out and retest previous resistance, like the green line suggests.

However in the FX market I have found that almost perfect looking setups often fail. So at the point of taking the trade (green circle), what other criteria should I be looking at? Volumes / Candlesticks / Indicators?


Thanks

The price most likely will reverse at the supply zone above.