Don’t worry about making everything perfect at the outset. As the old saying goes, done is better than perfect, and the sooner you launch your membership site, the sooner you’ll find out if it’s what your target audience wants. It’s fine to return to this step later and work on making your membership website look more professional once you've got some traction.
In professional diving, checklists are used in the preparation of equipment for a dive, and to ensure that the diver and life support systems are fully prepared before they enter the water. To a lesser extent, checklists are used by a minority of recreational divers, and by a larger proportion of technical divers during pre-dive checks. Studies have shown checklists to be effective at reducing the number of errors and consequent incidents.