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?
Determining a support and resistance points is just really a basic thing where there where no calculation involved but just simply drawn out a line which do illustrate those things.
Heres a good guide for you:
https://pepperstone.com/en/client-resources/the-beginner-s-guide-to-technical-analysis-part1-support-and-resistance