I mark supply and demand areas based on pivot points and the last candlestick before the main movements
Reason for marking supply and demand area:
1-There is Range inside these candles, after which the market has decided to move
2-And another reason to mark these candles is that banks and major market players in that area have orders.
The other thing I considered to be a secondary factor:
Areas where the price has reacted
The reaction to the supply area is doubtful,
so by reaching with the level of strong demand 4H and 1H
the probability of falling is strong.