How to switch off all the components before deep sleep?

[HAD1406]

Okay, and how did you connect the other hardware to it?

(Note that by starting from the DevkitV4, you're already at a bit of a disadvantage... those boards aren't really optimized for battery use as they use a LDO with a fairly high quiescent current.)

in the deep sleep mode, the power consumed must be in microamperes. could it be possible with esp32 S3 wroom-1 dev board?