store result Inventory

/give @s minecraft:carrot_on_a_stick

{Damage:1}

/data modify storage w3e Damage set value 10
/execute store result entity @s SelectedItem.tag.Damage int 1 run data get storage w3e Damage
/scoreboard players add test dummy
/execute store result entity @s SelectedItem.tag.Damage int 1 run scoreboard players set *1 test 10
all it's command not change SelectedItem.tag.Damage