market psychology

Hi Im trying to understand the psychology behind forex trading. Why is it that resistance and support levels work. It is the institutions like banks and hedge funds that move the market right? why are they always interested in buying in at those specific areas?

Sometimes government bank also involved in all that by controling key percentage level. But for sure bank and other invest funds interested in market shaking interested in market moves, that’s how they make money. I assume they just fix some profit or loss that way.

Capture 20 min after UK OPEN /U.S. OPEN.
Capture breakout S/R sellers or buyers and reverse market.