With Steemit, I don't really know any more. If it's steemcurator votes you're looking for, then you've probably got to enter one of the Steemit Learning Challenges. I haven't looked at any of the challenges so I don't really know though.

My advice has always been to do what you enjoy doing. If you're having fun and enjoy interacting with other people, then you'll almost certainly do well. When users are just chasing the $$$, it feels obvious to the reader.

With general crypto investing - I really don't have a clue. I'm confident that Bitcoin is a great long term investment but wouldn't know whether now is a good time to buy or not.

In summary, I don't really know much 🙂 Do what you enjoy doing and anything you earn on top of that is a bonus.