To make yourself an administrator, the exact steps depend on whether you are using Windows, macOS, Linux, or a Chromebook. Generally, you must either use an existing admin account to upgrade your current permissions or enable a hidden system administrator account via the terminal.
When making yourself an administrator, keep in mind: how to make yourself administrator
The process for becoming an administrator on Linux varies depending on the distribution. Here are general steps for Ubuntu-based systems: To make yourself an administrator, the exact steps