How does an Affiliate Marketer Juggle?

How do successful internet marketers manage more than one site? Is that the smart thing to do.. spread your opportunities across different sectors or try to find ways to maximize the one site you have? These are the questions I am struggling with now. I have one site built and I am in the process of creating ancillary content that I can use as a free giveaway for signing up to my email list. i've learned that it takes focused consistent energy to keep the content fresh, useful, and relevant just for the one site. In looking back I think I could have picked a more profitable niche but this is something I am passionate about so I definitely plan to continue building it and the community around it.

As I have moved through the trainings, learned some more skills through trial and error, and gained more insight into the online marketing industry, I have gotten other ideas. I even have tested two out by doing keyword research and bought a domain around one of my new ideas. But now what???? How in the world can I manage two sites? Does it just mean that I will have to get up earlier or work later in the night? What have you done as you grew in your online ventures?

I have gotten over the competition anxiety (the worry about others in your niche), I feel like I know how to build useful and SEO relevant content (I haven't found that button you push to make your site go to the top of Page 1 search results though..lol), but how in the world can I manage it? Any insights you can provide is appreciated. Happy Affiliating!