RE: Discovering a new community: Moonkart Racers Hub

Interact with people, focus on growing your network.
You could see Hive as a business / social network. You should grow your network through engaging with others. Don't focus on the upvotes, see it as a great extra you could potentially earn. Look around, see which communities for your interests, talk with people.
When you write articles yourself, try to write articles you would like to read, quality. It could be really about anything.
If you want to learn more about Hive, check out the Hive learners community.

Remember Hive isn't a get rich quick scheme but you have to build your following step by step.

On Hive, you have liquid Hive and staked Hive.
Liquid Hive can be traded, send to people, etc.
Staked Hive (Hive Power) gives you influence on the blockchain to vote on articles posted by others, interact about proposals regarding the future of the blockchain, etc. It is possible to delegate Hive Power. That way you lend your Hive Power to someone else. (Could be to support someone or for a certain fee or as a gift or...)

Feel free to ask more questions :)