Hi Bobby,
You've covered a lot of grounds
If I were, this would be my action plan:
1. First, identify what I have learned about internet marketing/making money online from my past experiences of previous websites.
2. (It sounds like you do not want to pursue further any of the sites you've started...) I would think of a new topic for a website while keeping the following in mind:
- a topic or market I am interested in or passionate about.
- identify a niche within that market (a niche is a specific group of people who share interest or passion in that market)
- make a list of what your niche's wants, needs, and desires.
- since your goal is to make money, make sure that your niche buys stuff (information, products, accessories, etc) to satisfy those wants, needs, or desires
- Of course, evaluating competition is important, but don't be discouraged by the big websites, like eBay, Craigslist, or kijijji. Those sites try to serve everyone. Remember, that's not your goal... focus on your niche.
- Create a website with quality content that is relevant, helpful, and adds values to your niche
This is what I would think about if I want to start a new website. Take your time. Do not rush through this, because often times, the research can really make or break the success of your project.
Hope this helped.