Caring for your graphics card doesn’t require a lot of effort. To address overheating, just make sure the PC or laptop is positioned so it can breathe properly. Other than that, changes to existing software and hardware settings may be necessary.
Remedy airflow issues by ensuring the computer vents are not impeded by other things like desks or floors and that their position allows free flow of air through them. This might mean moving the computer to another room where there’s more space or doing things like keeping heavy objects off the floor around it, vacuuming regularly to keep dust out, getting a good anti-static wrist strap if using an external mouse and keyboard and/or hard vacuum cleaner brush attachment. Disable background tasks while gaming and make sure the graphics card fan is free spinning and not obstructed by dust, pet hair or anything that might trap heat in the components.