Based on the video context, when looking for structure to focus on for bass fishing, it's important to find areas near flats where the bass can go to feed and then come back to the structure to feel comfortable. Some examples of structure to look for include humps, points, ridges, channels, and creek channels that come near a flat. Even if you're not marking fish on the structure, it's still worth fishing those areas as you might still catch fish there.
In addition to using a graph or map to locate structure, it's also helpful to look for signs of fish activity, such as bait fish or other fish, on your depth finder. Pay attention to the average depth where you see the most activity and try to find structure that intersects with that depth.
If the video context is unclear or insufficient, please provide more details about your fishing situation, such as the location, time of year, and any specific challenges you're facing, so that I can provide a more tailored answer.