Simple Script Cooldown

[adfxindustries]

Hello. I've been trying to make custom armor with cool "special abilities", however, I've ran into an issue with the cooldown I'm trying to implement, below is my code:

on sneak toggle:
    if player is sneaking:
        if custom model data of player's boots is 5001:
            if {cooldown.%player%} is not set or {cooldown.%player%} < now:

                push player upwards at velocity 2

                set {noFallDamage.%player%} to true
                set {hasLaunched.%player%} to true

                # Set cooldown
                set {cooldown.%player%} to now + 10 seconds
            else:
                send "&cYou must wait before using this ability again!" to player

on damage of player:
    if {noFallDamage.%victim%} is set:
        if damage cause is fall:
            cancel event
            if {hasLaunched.%victim%} is set:
                delete {hasLaunched.%victim%}

                apply swiftness 2 to victim for 10 seconds
                apply regeneration 2 to victim for 10 seconds

                loop all entities in radius 10 around victim:
                    if loop-entity is a mob:
                        strike lightning effect at loop-entity
                        set {_dx} to x-coordinate of loop-entity - x-coordinate of victim
                        set {_dz} to z-coordinate of loop-entity - z-coordinate of victim
                        set {_vector} to vector {_dx}, 0.5, {_dz}
                        set {_vector} to {_vector} * 2
                        set velocity of loop-entity to {_vector}