There's no doubt about it. Optimizing pages to satisfy search engines can be a tedious and demanding task. Not just initially, but throughout the duration of any website being live on the web.
Basically, your search engine optimization never ends. You strive for high page rank. That can mean an actual score like the one Google assigns to individual web pages or merely a conceptual rating that provides your website with more search engine recognition and stature than other sites in your area of interest.
Either way, the goal is to make your website more popular, more visible, more important than all the competition.
You might not reach the top of the heap, but that's where you have to aim i order to land anywhere near the top.