You have asked multiple questions there. Let me try to answer them.

1. In Steem blockchain new coins are created regularly. The coins newly created form the rewards pool. The rewards pool is distributed amongst content creators, content curators, SP holders and witnesses. The easiest way for you to earn rewards will be by adding meaningful comments on popular content, upvoting good content that you come across and then creating content. If you have some spare money you can buy steem and power up.

2. You can transfer your steem to any exchange and then you can convert it to bitcoin or Fiat currency.

3. The number beside your name is called reputation. You can increase your reputation by being active on the portal and adding value to the portal. Higher reputation will give you multiple benefits like authenticity to your account, more followers and more interaction on your posts.

4. Until you create a good number followers and an interactive community for your blog, it is difficult to get views. Checkout https://steemit.com/steem/@steemladder/there-are-no-dumb-questions-ask-anything-you-want-to-know-about-steem-blockchain#@steemladder/re-fer420-re-steemladder-there-are-no-dumb-questions-ask-anything-you-want-to-know-about-steem-blockchain-20180223t114902193z for some ideas.