This is where project management even for your website becomes important. Planning the steps by creating a task list, research, monitoring progress and budget, implementation and review. Will help you fit the most important elements in a way that makes sense as well as decide where best to spend your budget, especially if it is a tight one. For example, if you only have $100 a month to spend, you need to know if you want to spend $20 a month on blogging images, or $20 a month on a newsletter list tool.
I suggest using a process called wire framing to outline the pages and plan each tag, hyperlink and button making sure you have everything you need to be successful and drive traffic and sales the way you hope to in the time frame you need them. I know you are thinking your time would be better spent planning the next book. But consider this, your website is the hub of your brand. It is the thing that all social media and platforms like Goodreads, Amazon and the like point to, your virtual store front if you will. Don't you think it warrants the same consideration any other large part of your business plan receives?