Once the course launches, they are ready with their wallets. The course is priced at $100 (probably undercharging here, but it’s your first course and you are nervous) so some of them balk at buying it, but 100 people do end up buying it and you make $10,000 (minus processing fees). That’s the same amount you made from your advertising and you are in control of everything! Even better you don’t have to wait 30-60 days to get paid.
If you want to be famous or reach a wide audience, you will have to choose something slightly broader and work hard to make the best content for that topic. A subtopic relating to fitness, finance, or relationship advice is likely to reach the most people. Consider specific but broadly applicable topics such as managing money in college, or a marriage counseling blog.
Hi Sam! I love your site. We should definitely connect. I’m a school counselor and recently launched a site for parents to address pertinent teen topics. Like you, I struggle with the ultimate service I’d eventually offer on my site, but Ramsay’s idea is a great start. He’s absolutely right that people are looking for fresh content for their sites! Best of luck to you and I hope we can collaborate. 
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