How do I go about keeping my license active?

FF sums it all up - it depends on your specific state's requirements.

Are you licensed by the State? If yes, then you will need to check with the State to see what is required, such as continuing education, and/or yearly fee, and/or needing to hang your license with a service agency. Every State has their own rules and regulations.

i forgot to mention im a cna Ihope to go back to work one day so i want to keep my cna certificate acctive, my place of employment kept it up to date for me. i was a hospice worker.