Preparation

Prerequisites
Before starting this guide, it is recommended that you have a basic understanding of variables and how to use them. If you need to brush up on these concepts, you can check out the Variables Tutorial here.

Variables
When naming cooldown variables in Skript, it's common to use this format:
    {cooldown::%player's uuid%::event}
    # The prefix indicates a player-specific cooldown variable.
    # Cooldown variables are separated by %player's uuid%.
    # (event) Represents the specific action or event associated with the cooldown variable.
    # It should describe the action or event being cooled down.

By using this format, you will be able to ensure that each player has a separate cooldown variable tied to a specific action or event. 
As an example, {cooldown::%player's uuid%::event} represents the cooldown for teleportation actions specific to each player. You can easily track and manage cooldowns in your scripts by following this naming convention.