Like above posts.. Details help, but I'd say there are several elements. Basing off what I see from others... Success comes easier when you consistently add videos that keep the ball rolling. Gotta come up with new ideas/etc.. but not out of you topic or style.. if you get what Im saying. Think about the audience you want to attract. Think about how many people out there you think would search for certain topics. It takes many things from what I see to make success happen without the luck many people have. --- I envy them too.
heh. My channel is only a few days old.
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