Welcome @charliechan
Here is few tips for you
firstly, follow me @digital-entrep and be subjected to wonderful posts that would help you grow in the platform
secondly, sign up with steemit chat to help promote your post reach a wider audience
thirdly, engage(upvote, comment, resteem) other people posts to help guide your grow
Also read this post https://steemit.com/steemit/@digital-entrep/steemit-order-and-chaos-every-beginner-s-guide-to-cope