Welcome to Steemit.
It takes time to figure it all out so take your time. My best advice is to post original content, Photography, art work, music, poetry, discussion on crypto currencies. Don't ask for upvotes or follows you will get those with great content. Try to only upvote on 10 posts per day to keep your Voting Power high ... as you accumulate Steem ... Power up to Steem Power so that your votes are worth more.
Have fun.
When you start out make sure you comment on really great content so people know you are there. Make sure your comment relates to the post you are commenting on.
Join some photography contests hosted by 
Steemit is the best thing ever created .... So you are very fortunate to have discovered it.