Technical trader has no problem determining about the resistance and support area. But how did they able to know that this is the resistance point and this is the support. I am a trader but I am not a technical trader. What specific signal or volume or etc to know it is that and that?
basis on the candles, volumes, bids/orders/sells and history
you may see this also, though this is for stocks, its basically use also on cryptos
https://www.investopedia.com/trading/support-and-resistance-basics/