There are allot of different strats here on Steemit. I have choose to grow my account organically. I never knew how tough that was going to be until I started that journey. While I can't give advice on what you should do ... It would be allot easier to grow your account if you start with a decent amount of Steem Power to being with. You are likely to get more attention to your articles from those wanting upvotes from you thus in return get more upvotes and rewards yourself.
Good luck with your account !