That is a damn long story my friend.
Steemfollower is upvoting others posts for which you get points, over time you will lose these points because others upvote you in return.
The better your content is the higher your chance is to score an upvote (you certainly have good chances).
So much about Steemfollower
Curator is a bot that will automatically upvote you with $2 if you tell the owners on Discord to check your profile (they don't want to support lazy authors) and send them 2 SBD or Steem.
Afterwards you send them a delegation of 300SP and upvote them with at least $0.01 cent every day.
In return for all that you will receive $2 every day, and in my opinion, it is absolutely worth it to give 300SP away for that.
Think about it, you get $60 in return which is 30 SBD which is currently 90 USD!
To explain Minnowbooster you need to drop by on Discord, that story is a bit longer!