David Kadavy doesn't seem too active anymore, and he seems to be one of these 'make money' kind of people who used to be around but have slipped out now, as the token has reached 17c.
I would never advocate Steemit as a money making place, but in your case.. you already run your own blog so cross-posting is a very good idea.
The tribes are relatively new, but it seems you already discovered them and the use of tags, which is also great.
Hope you settle in, just don't expect too much. Its very easy to get disheartened and think, 'why are they getting more than me'.
I wrote these some time ago, but most of the content is still relevant. The might help you some.
Don't vote them, as they paid out months ago!
https://steemit.com/steem/@slobberchops/some-newbie-tips-for-well-newbies
https://steemit.com/steem/@slobberchops/some-more-newbie-tips-for-well-newbies