Yeah you're on the right track in finding a niche - Think about a specific audience you'd like to target and market it just for them - An example could be brides -
I have a friend who makes her living doing "bridal bootcamps". I actually did an interview with my friends who did this
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You don't have to pick brides as your niche, but it's still good to realize that you can make a living by targeting a very specific niche group.